Weather Warnings for Illinois

Issued by the National Weather Service

Current watches, warnings, and advisories for Illinois
Alerts Updated: June 27, 2026, 8:15 pm  UTC


Flash Flood Warning issued June 27 at 2:33PM CDT until June 27 at 8:30PM CDT by NWS Paducah KY

Summary: FFWPAH The National Weather Service in Paducah has issued a * Flash Flood Warning for... Southern Edwards County in southeastern Illinois... Southern Wabash County in southeastern Illinois... Central Gibson County in southwestern Indiana... * Until 830 PM CDT. * At 233 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 2 and 7 inches of rain have fallen. Additional rainfall amounts of 1 to 3 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Princeton, Mount Carmel, Oakland City, Albion, Grayville, Owensville, Patoka, Francisco, Bellmont, Hazleton, Bone Gap, Keensburg and Browns.
Severity:  Severe    Effective:  June 27, 2026, 2:33 pm      Expires:  June 27, 2026, 8:30 pm
Area:  Edwards, IL; Wabash, IL; Gibson, IN


Flood Advisory issued June 27 at 2:29PM CDT until June 27 at 4:30PM CDT by NWS St Louis MO

Summary: * WHAT...Flooding caused by excessive rainfall continues. * WHERE...Bond County in south central Illinois... Fayette County in south central Illinois... * WHEN...Until 430 PM CDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 228 PM CDT, Doppler radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 1.5 and 4 inches of rain have fallen. - Additional rainfall amounts up to 1.5 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Vandalia, Greenville, St. Elmo, Pocahontas, Brownstown, Mulberry Grove, Tamalco, Farina, Beaver Creek, Shobonier, Woburn, Reno, Avena, Pleasant Mound, La Clede, Pierron, Pittsburg, Shafter, Keyesport and St. Peter.
Severity:  Minor    Effective:  June 27, 2026, 2:29 pm      Expires:  June 27, 2026, 4:30 pm
Area:  Bond, IL; Fayette, IL


Flood Advisory issued June 27 at 2:27PM CDT until June 27 at 4:00PM CDT by NWS St Louis MO

Summary: * WHAT...Flooding caused by excessive rainfall continues. * WHERE...Northwestern Clinton County in south central Illinois... Madison County in southwestern Illinois... Northeastern Saint Louis City in east central Missouri... * WHEN...Until 400 PM CDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 227 PM CDT, Doppler radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 1 and 3 inches of rain have fallen. - Additional rainfall amounts up to 1.5 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Granite City, Alton, Collinsville, Edwardsville, Glen Carbon, Wood River, Highland, Troy, Bethalto, Maryville, Pontoon Beach, Madison, Venice, East Alton, South Roxana, Roxana and Hartford.
Severity:  Minor    Effective:  June 27, 2026, 2:27 pm      Expires:  June 27, 2026, 4:00 pm
Area:  Clinton, IL; Madison, IL; St. Louis City, MO


Flood Advisory issued June 27 at 2:17PM CDT until June 27 at 5:30PM CDT by NWS Paducah KY

Summary: * WHAT...Flooding caused by excessive rainfall is expected. * WHERE...A portion of southern Illinois, including the following county, Wayne. * WHEN...Until 530 PM CDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 216 PM CDT, Doppler radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 0.5 and 2 inches of rain have fallen. - Additional rainfall amounts of 0.5 to 1 inch are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Fairfield, Wayne City and Golden Gate.
Severity:  Minor    Effective:  June 27, 2026, 2:17 pm      Expires:  June 27, 2026, 5:30 pm
Area:  Wayne, IL


Flash Flood Warning issued June 27 at 2:00PM CDT until June 27 at 3:45PM CDT by NWS St Louis MO

Summary: At 200 PM CDT, emergency management reported thunderstorms producing heavy rain across the warned area. Between 2 and 5.5 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Emergency management reported. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. Some locations that will experience flash flooding include... Centralia, Salem, Sandoval, Wamac, Central City, Odin, Omega, Helm, Iuka, Junction City, Kell, Walnut Hill, Cartter and Selmaville. This includes Interstate 57 in Illinois between exits 109 and 116.
Severity:  Severe    Effective:  June 27, 2026, 2:00 pm      Expires:  June 27, 2026, 3:45 pm
Area:  Marion, IL


Severe Thunderstorm Watch issued June 27 at 1:59PM CDT until June 27 at 8:00PM CDT by NWS Paducah KY

Summary: THE NATIONAL WEATHER SERVICE HAS EXTENDED SEVERE THUNDERSTORM WATCH 403 TO INCLUDE THE FOLLOWING AREAS UNTIL 8 PM CDT /9 PM EDT/ THIS EVENING IN ILLINOIS THIS WATCH INCLUDES 5 COUNTIES IN SOUTHEAST ILLINOIS EDWARDS IN SOUTHERN ILLINOIS HAMILTON WABASH WAYNE WHITE IN INDIANA THIS WATCH INCLUDES 6 COUNTIES IN SOUTHWEST INDIANA POSEY IN SOUTHWEST INDIANA GIBSON PIKE SPENCER VANDERBURGH WARRICK THIS INCLUDES THE CITIES OF ALBION, BOONVILLE, CARMI, EVANSVILLE, FAIRFIELD, FORT BRANCH, GRAYVILLE, MCLEANSBORO, MOUNT CARMEL, PETERSBURG, POSEYVILLE, ROCKPORT, AND WEST SALEM.
Severity:  Severe    Effective:  June 27, 2026, 1:59 pm      Expires:  June 27, 2026, 7:00 pm
Area:  Edwards, IL; Hamilton, IL; Wabash, IL; Wayne, IL; White, IL; Gibson, IN; Pike, IN; Posey, IN; Spencer, IN; Vanderburgh, IN; Warrick, IN


Severe Thunderstorm Watch issued June 27 at 1:59PM CDT until June 27 at 8:00PM CDT by NWS Paducah KY

Summary: SEVERE THUNDERSTORM WATCH 403 REMAINS VALID UNTIL 8 PM CDT THIS EVENING FOR THE FOLLOWING AREAS IN ILLINOIS THIS WATCH INCLUDES 9 COUNTIES IN SOUTHERN ILLINOIS ALEXANDER GALLATIN HARDIN JOHNSON MASSAC POPE PULASKI SALINE UNION IN KENTUCKY THIS WATCH INCLUDES 22 COUNTIES IN WESTERN KENTUCKY BALLARD CALDWELL CALLOWAY CARLISLE CHRISTIAN CRITTENDEN DAVIESS FULTON GRAVES HENDERSON HICKMAN HOPKINS LIVINGSTON LYON MARSHALL MCCRACKEN MCLEAN MUHLENBERG TODD TRIGG UNION WEBSTER IN MISSOURI THIS WATCH INCLUDES 4 COUNTIES IN SOUTHEAST MISSOURI MISSISSIPPI NEW MADRID SCOTT STODDARD THIS INCLUDES THE CITIES OF BARDWELL, BENTON, BLOOMFIELD, CADIZ, CAIRO, CALHOUN, CHARLESTON, CLINTON, DIXON, EDDYVILLE, ELIZABETHTOWN, ELKTON, GOLCONDA, GREENVILLE, HARRISBURG, HENDERSON, HICKMAN, HOPKINSVILLE, JONESBORO, MADISONVILLE, MARION, MAYFIELD, METROPOLIS, MORGANFIELD, MOUND CITY, MURRAY, NEW MADRID, OWENSBORO, PADUCAH, PRINCETON, SHAWNEETOWN, SIKESTON, SMITHLAND, VIENNA, AND WICKLIFFE.
Severity:  Severe    Effective:  June 27, 2026, 1:59 pm      Expires:  June 27, 2026, 7:00 pm
Area:  Alexander, IL; Gallatin, IL; Hardin, IL; Johnson, IL; Massac, IL; Pope, IL; Pulaski, IL; Saline, IL; Union, IL; Ballard, KY; Caldwell, KY; Calloway, KY; Carlisle, KY; Christian, KY; Crittenden, KY; Daviess, KY; Fulton, KY; Graves, KY; Henderson, KY; Hickman, KY; Hopkins, KY; Livingston, KY; Lyon, KY; McCracken, KY; McLean, KY; Marshall, KY; Muhlenberg, KY; Todd, KY; Trigg, KY; Union, KY; Webster, KY; Mississippi, MO; New Madrid, MO; Scott, MO; Stoddard, MO


Flash Flood Warning issued June 27 at 1:27PM CDT until June 27 at 7:30PM CDT by NWS Paducah KY

Summary: FFWPAH The National Weather Service in Paducah has issued a * Flash Flood Warning for... Jefferson County in south central Illinois... Wayne County in south central Illinois... Northern Edwards County in southeastern Illinois... Northern Wabash County in southeastern Illinois... * Until 730 PM CDT Saturday. * At 127 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. The expected rainfall rate is 1 to 2.5 inches in 1 hour. Additional rainfall amounts of 1 to 3 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Mount Vernon, Lancaster, Wayne City, West Salem, Woodlawn, Bluford, Cisne, Allendale, Dix, Jeffersonville, Sims, Mount Erie, Keenes and Johnsonville.
Severity:  Severe    Effective:  June 27, 2026, 1:27 pm      Expires:  June 27, 2026, 7:30 pm
Area:  Edwards, IL; Jefferson, IL; Wabash, IL; Wayne, IL


Extreme Heat Warning issued June 27 at 1:24PM CDT until June 30 at 9:00PM CDT by NWS Quad Cities IA IL

Summary: * WHAT...Dangerously hot conditions with heat index values exceeding 100 degrees multiple days, with several locations seeing upwards to 105 to 110. * WHERE...Portions of northwest and west central Illinois, east central and southeast Iowa, and northeast Missouri. * WHEN...From 1 PM Sunday to 9 PM CDT Tuesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...There is the possibility that excessive heat will last for much of next week. Thunderstorms and associated cloud debris may interrupt the excessive heat at times late in the week.
Severity:  Severe    Effective:  June 27, 2026, 1:24 pm      Expires:  June 27, 2026, 9:30 pm
Area:  Benton; Linn; Iowa; Johnson; Cedar; Muscatine; Scott; Keokuk; Washington; Louisa; Jefferson; Henry; Des Moines; Van Buren; Lee; Rock Island; Mercer; Henderson; Warren; Hancock; McDonough; Scotland; Clark


Extreme Heat Watch issued June 27 at 1:24PM CDT until June 30 at 9:00PM CDT by NWS Quad Cities IA IL

Summary: * WHAT...Dangerously hot conditions with heat index values exceeding 100 degrees multiple days. * WHERE...Portions of north central and northwest Illinois and east central and northeast Iowa. * WHEN...From Sunday afternoon through Tuesday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...There is the possibility that excessive heat will last for much of next week. Thunderstorms and associated cloud debris may interrupt the excessive heat at times late in the week.
Severity:  Severe    Effective:  June 27, 2026, 1:24 pm      Expires:  June 27, 2026, 9:30 pm
Area:  Buchanan; Delaware; Dubuque; Jones; Jackson; Clinton; Jo Daviess; Stephenson; Carroll; Whiteside; Henry; Bureau; Putnam


Flood Warning issued June 27 at 1:21PM CDT by NWS St Louis MO

Summary: ...The Flood Warning continues for the following rivers in Illinois... Illinois River at Meredosia. Illinois River at La Grange LD. Illinois River at Valley City. Illinois River at Hardin. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Illinois River at La Grange LD. * WHEN...Until further notice. * ADDITIONAL DETAILS... - At 12:00 PM CDT Saturday the stage was 26.3 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 12:00 PM CDT Saturday was 26.3 feet. - Forecast...The river is expected to rise to a crest of 26.3 feet this evening. - Flood stage is 23.0 feet.
Severity:  Severe    Effective:  June 27, 2026, 1:21 pm      Expires:  June 29, 2026, 1:30 am
Area:  Brown, IL


Flood Warning issued June 27 at 1:21PM CDT by NWS St Louis MO

Summary: ...The Flood Warning continues for the following rivers in Illinois... Illinois River at Meredosia. Illinois River at La Grange LD. Illinois River at Valley City. Illinois River at Hardin. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Illinois River at Valley City. * WHEN...Until further notice. * ADDITIONAL DETAILS... - At 1:00 PM CDT Saturday the stage was 18.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 1:00 PM CDT Saturday was 18.0 feet. - Forecast...The river is expected to rise to a crest of 18.3 feet just after midnight tonight. - Flood stage is 14.0 feet.
Severity:  Severe    Effective:  June 27, 2026, 1:21 pm      Expires:  June 29, 2026, 1:30 am
Area:  Pike, IL; Scott, IL


Flood Warning issued June 27 at 1:21PM CDT by NWS St Louis MO

Summary: ...The Flood Warning continues for the following rivers in Illinois... Illinois River at Meredosia. Illinois River at La Grange LD. Illinois River at Valley City. Illinois River at Hardin. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Illinois River at Meredosia. * WHEN...Until further notice. * IMPACTS...At 21.0 feet, Chambers Road south of Naples floods at Mauvaise Terre Creek near this level. * ADDITIONAL DETAILS... - At 1:00 PM CDT Saturday the stage was 20.4 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 1:00 PM CDT Saturday was 20.4 feet. - Forecast...The river is expected to rise to a crest of 20.7 feet tomorrow morning. - Flood stage is 17.0 feet.
Severity:  Severe    Effective:  June 27, 2026, 1:21 pm      Expires:  June 29, 2026, 1:30 am
Area:  Morgan, IL; Pike, IL


Flood Warning issued June 27 at 1:21PM CDT by NWS St Louis MO

Summary: ...The Flood Warning continues for the following rivers in Illinois... Illinois River at Meredosia. Illinois River at La Grange LD. Illinois River at Valley City. Illinois River at Hardin. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Illinois River at Hardin. * WHEN...Until further notice. * ADDITIONAL DETAILS... - At 1:00 PM CDT Saturday the stage was 26.7 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 1:00 PM CDT Saturday was 26.9 feet. - Forecast...The river is expected to fall to 25.3 feet Saturday, July 04. - Flood stage is 25.0 feet.
Severity:  Severe    Effective:  June 27, 2026, 1:21 pm      Expires:  June 29, 2026, 1:30 am
Area:  Calhoun, IL; Greene, IL; Jersey, IL


Flash Flood Warning issued June 27 at 1:18PM CDT until June 27 at 7:30PM CDT by NWS Lincoln IL

Summary: FFWILX The National Weather Service in Lincoln has issued a * Flash Flood Warning for... Crawford County in east central Illinois... Clay County in south central Illinois... Southeastern Effingham County in south central Illinois... Jasper County in southeastern Illinois... Lawrence County in southeastern Illinois... Richland County in southeastern Illinois... * Until 730 PM CDT Saturday. * At 117 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. The expected rainfall rate is 1 to 2 inches in 1 hour. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Olney, Robinson, Flora, Lawrenceville, Newton, Sumner, Bridgeport, Oblong, Palestine, Louisville, Clay City, St. Francisville, Noble, Hutsonville, Edgewood, Xenia, Mason, Bible Grove, Flat Rock and Ste. Marie.
Severity:  Severe    Effective:  June 27, 2026, 1:18 pm      Expires:  June 27, 2026, 7:30 pm
Area:  Clay, IL; Crawford, IL; Effingham, IL; Jasper, IL; Lawrence, IL; Richland, IL


Heat Advisory issued June 27 at 1:15PM CDT until July 3 at 12:00AM CDT by NWS St Louis MO

Summary: * WHAT...Heat index values up to around 105 expected. * WHERE...Portions of south central, southwest, and west central Illinois and central, east central, northeast, and southeast Missouri. * WHEN...From noon Sunday to midnight CDT Thursday Night. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Severity:  Moderate    Effective:  June 27, 2026, 1:15 pm      Expires:  June 28, 2026, 4:15 am
Area:  Greene; Macoupin; Montgomery; Bond; Fayette; Clinton; Marion; Washington; Randolph; Adams; Brown; Pike; Calhoun; Jersey; Knox; Lewis; Shelby; Marion; Monroe; Ralls; Pike; Boone; Audrain; Moniteau; Cole; Osage; Callaway; Montgomery; Lincoln; Gasconade; Warren; Franklin; Crawford; Washington; St. Francois; Ste. Genevieve; Iron; Madison; Reynolds


Extreme Heat Warning issued June 27 at 1:15PM CDT until July 3 at 12:00AM CDT by NWS St Louis MO

Summary: * WHAT...Dangerously hot conditions with heat index values up to around 110 expected. * WHERE...In Illinois, Madison IL, Monroe IL, and Saint Clair IL Counties. In Missouri, Jefferson MO, Saint Charles MO, Saint Louis City MO, and Saint Louis MO Counties. * WHEN...From noon Sunday to midnight CDT Thursday Night. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.
Severity:  Severe    Effective:  June 27, 2026, 1:15 pm      Expires:  June 28, 2026, 4:15 am
Area:  Madison; St. Clair; Monroe; St. Charles; St. Louis; St. Louis City; Jefferson


Special Weather Statement issued June 27 at 12:31PM CDT by NWS Lincoln IL

Summary: Atmospheric conditions exist that favor the possible formation of weak circulations along a pre-existing boundary. Some of these circulations are occurring underneath developing showers and thunderstorms, where a funnel cloud may develop. Once the rain begins, the funnel cloud usually dissipates. Low hanging clouds can also appear to dip up and down at times, but they will not show signs of any rapid rotation. An actual funnel cloud will exhibit spinning in a counter-clockwise direction. In rare instances these funnels may briefly touch down. Stay alert and be prepared to move to a safe shelter if a funnel cloud approaches the ground.
Severity:  Moderate    Effective:  June 27, 2026, 12:31 pm      Expires:  June 27, 2026, 7:00 pm
Area:  Scott; Morgan; Sangamon; Christian; Macon; Moultrie; Douglas; Coles; Edgar; Shelby; Cumberland; Clark


Flood Warning issued June 27 at 1:16PM EDT until July 1 at 4:15PM EDT by NWS Indianapolis IN

Summary: ...The Flood Warning is extended for the following rivers in Illinois...Indiana... Wabash River at Mount Carmel. .Heavy rainfall Friday and Saturday has exacerbated ongoing flooding along the lower Wabash River. Minor flooding is now expected to continue through midweek. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Wabash River at Mount Carmel. * WHEN...Until Wednesday afternoon. * IMPACTS...At 22.0 feet, Flood waters begin to affect residents of East Mt. Carmel, Indiana. Fifth Street that parallels river closes. Twin restaurant along the river also closes. Several local river roads flood. * ADDITIONAL DETAILS... - At 12:45 PM EDT Saturday /11:45 AM CDT Saturday/ the stage was 20.6 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 12:45 PM EDT Saturday /11:45 AM CDT Saturday/ was 20.6 feet. - Forecast...The river is expected to rise to a crest of 21.8 feet tomorrow morning. It will then fall below flood stage early Wednesday morning. - Flood stage is 19.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  June 27, 2026, 1:16 pm      Expires:  June 28, 2026, 4:30 am
Area:  Edwards, IL; Gallatin, IL; Wabash, IL; White, IL; Gibson, IN; Knox, IN; Posey, IN


Extreme Heat Watch issued June 27 at 11:51AM CDT until July 1 at 10:00PM CDT by NWS Chicago IL

Summary: * WHAT...Dangerously hot conditions with heat index values around 105 possible. * WHERE...Cook County. * WHEN...From Monday afternoon through Wednesday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.
Severity:  Severe    Effective:  June 27, 2026, 11:51 am      Expires:  June 27, 2026, 10:00 pm
Area:  Northern Cook; Central Cook; Southern Cook


Flood Warning issued June 27 at 11:25AM CDT until July 2 at 1:00AM CDT by NWS Paducah KY

Summary: ...The Flood Warning is extended for the following rivers in Illinois...Indiana... Wabash River at New Harmony affecting Posey, White, Wabash, Gibson and Gallatin Counties. .Recent heavy rainfall has lead to rising levels along the Wabash River. Minor flooding continues at New Harmony, with a projected crest of 16.6 feet forecast Sunday night. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Wabash River at New Harmony. * WHEN...Until early Thursday morning. * IMPACTS...At 15.0 feet, The river overflows low ground on the Illinois side. * ADDITIONAL DETAILS... - At 10:30 AM CDT Saturday the stage was 15.7 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:30 AM CDT Saturday was 15.8 feet. - Forecast...The river is expected to rise to a crest of 16.6 feet early Monday morning. It will then fall below flood stage Wednesday evening. - Flood stage is 15.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  June 27, 2026, 11:25 am      Expires:  June 28, 2026, 1:30 pm
Area:  Gallatin, IL; Wabash, IL; White, IL; Gibson, IN; Posey, IN


Heat Advisory issued June 27 at 11:14AM CDT until June 28 at 7:00PM CDT by NWS Lincoln IL

Summary: * WHAT...Heat index values up to 105 expected. * WHERE...Portions of central, east central, southeast, and west central Illinois. * WHEN...From 1 PM to 7 PM CDT Sunday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Severity:  Moderate    Effective:  June 27, 2026, 11:14 am      Expires:  June 28, 2026, 4:00 am
Area:  Knox; Stark; Peoria; Fulton; Tazewell; Schuyler; Mason; Logan; Cass; Menard; Scott; Morgan; Sangamon; Christian; Macon; Moultrie; Shelby; Cumberland; Effingham; Jasper; Crawford; Clay; Richland; Lawrence


Extreme Heat Watch issued June 27 at 11:00AM CDT until July 2 at 8:00PM CDT by NWS Paducah KY

Summary: * WHAT...For the Heat Advisory, heat index values between 102 and 107 expected. For the Extreme Heat Watch, dangerously hot conditions with heat index values of 105 to 110 possible. * WHERE...Portions of southern Illinois, southwest Indiana, western Kentucky, and southeast Missouri. * WHEN...For the Heat Advisory, from noon CDT /1 PM EDT/ to 8 PM CDT /9 PM EDT/ Sunday. For the Extreme Heat Watch, from Monday morning through Thursday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...A prolonged period of dangerous heat and humidity is expected this coming week. This heatwave may linger into the 4th of July weekend.
Severity:  Severe    Effective:  June 27, 2026, 11:00 am      Expires:  June 28, 2026, 5:15 am
Area:  Jefferson; Wayne; Edwards; Wabash; Perry; Franklin; Hamilton; White; Jackson; Williamson; Saline; Gallatin; Union; Johnson; Pope; Hardin; Alexander; Pulaski; Massac; Gibson; Pike; Posey; Vanderburgh; Warrick; Spencer; Fulton; Hickman; Carlisle; Ballard; McCracken; Graves; Livingston; Marshall; Calloway; Crittenden; Lyon; Trigg; Caldwell; Union; Webster; Hopkins; Christian; Henderson; Daviess; McLean; Muhlenberg; Todd; Perry; Bollinger; Cape Girardeau; Wayne; Carter; Ripley; Butler; Stoddard; Scott; Mississippi; New Madrid


Heat Advisory issued June 27 at 11:00AM CDT until June 28 at 8:00PM CDT by NWS Paducah KY

Summary: * WHAT...For the Heat Advisory, heat index values between 102 and 107 expected. For the Extreme Heat Watch, dangerously hot conditions with heat index values of 105 to 110 possible. * WHERE...Portions of southern Illinois, southwest Indiana, western Kentucky, and southeast Missouri. * WHEN...For the Heat Advisory, from noon CDT /1 PM EDT/ to 8 PM CDT /9 PM EDT/ Sunday. For the Extreme Heat Watch, from Monday morning through Thursday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...A prolonged period of dangerous heat and humidity is expected this coming week. This heatwave may linger into the 4th of July weekend.
Severity:  Moderate    Effective:  June 27, 2026, 11:00 am      Expires:  June 28, 2026, 5:15 am
Area:  Jefferson; Wayne; Edwards; Wabash; Perry; Franklin; Hamilton; White; Jackson; Williamson; Saline; Gallatin; Union; Johnson; Pope; Hardin; Alexander; Pulaski; Massac; Gibson; Pike; Posey; Vanderburgh; Warrick; Spencer; Fulton; Hickman; Carlisle; Ballard; McCracken; Graves; Livingston; Marshall; Calloway; Crittenden; Lyon; Trigg; Caldwell; Union; Webster; Hopkins; Christian; Henderson; Daviess; McLean; Muhlenberg; Todd; Perry; Bollinger; Cape Girardeau; Wayne; Carter; Ripley; Butler; Stoddard; Scott; Mississippi; New Madrid


Flood Watch issued June 27 at 10:44AM CDT until June 28 at 7:00AM CDT by NWS Paducah KY

Summary: * WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of southern Illinois, including the following areas, Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin, Jackson, Jefferson, Johnson, Massac, Perry IL, Pope, Pulaski, Saline, Union, Wabash, Wayne IL, White and Williamson, southwest Indiana, including the following areas, Gibson, Pike, Posey, Spencer, Vanderburgh and Warrick, western Kentucky, including the following areas, Ballard, Caldwell, Calloway, Carlisle, Christian, Crittenden, Daviess, Fulton, Graves, Henderson, Hickman, Hopkins, Livingston, Lyon, Marshall, McCracken, McLean, Muhlenberg, Todd, Trigg, Union KY and Webster, and southeast Missouri, including the following areas, Bollinger, Butler, Cape Girardeau, Carter, Mississippi, New Madrid, Perry MO, Ripley, Scott, Stoddard and Wayne MO. * WHEN...Through Sunday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Low-water crossings may be flooded. * ADDITIONAL DETAILS... - Additional rounds of very heavy rainfall may produce flash flooding through tonight. Many areas have already received amounts of 2-5", with localized swaths in excess of 6". Considerable to significant flash flooding is possible. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  June 27, 2026, 10:44 am      Expires:  June 28, 2026, 7:00 am
Area:  Jefferson; Wayne; Edwards; Wabash; Perry; Franklin; Hamilton; White; Jackson; Williamson; Saline; Gallatin; Union; Johnson; Pope; Hardin; Alexander; Pulaski; Massac; Gibson; Pike; Posey; Vanderburgh; Warrick; Spencer; Fulton; Hickman; Carlisle; Ballard; McCracken; Graves; Livingston; Marshall; Calloway; Crittenden; Lyon; Trigg; Caldwell; Union; Webster; Hopkins; Christian; Henderson; Daviess; McLean; Muhlenberg; Todd; Perry; Bollinger; Cape Girardeau; Wayne; Carter; Ripley; Butler; Stoddard; Scott; Mississippi; New Madrid


Flood Warning issued June 27 at 10:13AM CDT by NWS Lincoln IL

Summary: ...The Flood Warning continues for the following rivers in Illinois... Little Wabash River below Clay City affecting Richland and Clay Counties. .The following forecasts are based on observed precipitation, soil moisture conditions, and forecast precipitation. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Little Wabash River below Clay City. * WHEN...Until further notice. * IMPACTS...At 22.0 feet, North Clay Road...1 mile east of the gage is flooded. * ADDITIONAL DETAILS... - At 9:45 AM CDT Saturday the stage was 21.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:45 AM CDT Saturday was 21.0 feet. - Forecast...The river is expected to rise to a crest of 21.2 feet Monday morning. - Flood stage is 18.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  June 27, 2026, 10:13 am      Expires:  June 28, 2026, 2:15 am
Area:  Clay, IL; Richland, IL


Flood Warning issued June 27 at 9:52AM CDT until July 1 at 8:30PM CDT by NWS Lincoln IL

Summary: ...The Flood Warning continues for the following rivers in Illinois... Embarras River at Lawrenceville affecting Lawrence County. .The following forecasts are based on observed precipitation, soil moisture conditions, and forecast precipitation. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Embarras River at Lawrenceville. * WHEN...Until Wednesday evening. * IMPACTS...At 33.0 feet, Kelly's Lake Lane, 1160N, is inundated. * ADDITIONAL DETAILS... - At 8:45 AM CDT Saturday the stage was 33.2 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:45 AM CDT Saturday was 33.2 feet. - Forecast...The river is expected to rise to a crest of 33.6 feet just after midnight tonight. It will then fall below flood stage early Wednesday afternoon. - Flood stage is 30.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  June 27, 2026, 9:52 am      Expires:  June 28, 2026, 2:00 am
Area:  Lawrence, IL


Flood Warning issued June 27 at 9:45AM CDT until July 2 at 1:00PM CDT by NWS Lincoln IL

Summary: ...The Flood Warning is extended for the following rivers in Illinois... Illinois River at Henry affecting Marshall and Putnam Counties. ...The Flood Warning continues for the following rivers in Illinois... Illinois River at Peoria affecting Peoria, Woodford and Tazewell Counties. Illinois River at Beardstown affecting Schuyler, Brown, Morgan and Cass Counties. Illinois River near Havana affecting Fulton, Mason and Cass Counties. .The following forecasts are based on observed precipitation, soil moisture conditions, and forecast precipitation. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Illinois River at Peoria. * WHEN...Until early Thursday afternoon. * ADDITIONAL DETAILS... - At 8:45 AM CDT Saturday the stage was 20.3 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:45 AM CDT Saturday was 20.5 feet. - Forecast...The river is expected to fall below flood stage Thursday morning and continue falling to 16.8 feet Saturday, July 04. - Flood stage is 18.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  June 27, 2026, 9:45 am      Expires:  June 28, 2026, 1:45 am
Area:  Peoria, IL; Tazewell, IL; Woodford, IL


Flood Warning issued June 27 at 9:45AM CDT by NWS Lincoln IL

Summary: ...The Flood Warning is extended for the following rivers in Illinois... Illinois River at Henry affecting Marshall and Putnam Counties. ...The Flood Warning continues for the following rivers in Illinois... Illinois River at Peoria affecting Peoria, Woodford and Tazewell Counties. Illinois River at Beardstown affecting Schuyler, Brown, Morgan and Cass Counties. Illinois River near Havana affecting Fulton, Mason and Cass Counties. .The following forecasts are based on observed precipitation, soil moisture conditions, and forecast precipitation. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Illinois River at Beardstown. * WHEN...Until further notice. * IMPACTS...At 20.0 feet, Seepage problems begin in the South Beardstown Drainage and Levee District. * ADDITIONAL DETAILS... - At 8:45 AM CDT Saturday the stage was 21.4 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:45 AM CDT Saturday was 21.4 feet. - Forecast...The river is expected to fall to 19.0 feet Saturday, July 04. - Flood stage is 14.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  June 27, 2026, 9:45 am      Expires:  June 28, 2026, 1:45 am
Area:  Brown, IL; Cass, IL; Morgan, IL; Schuyler, IL


Flood Warning issued June 27 at 9:45AM CDT by NWS Lincoln IL

Summary: ...The Flood Warning is extended for the following rivers in Illinois... Illinois River at Henry affecting Marshall and Putnam Counties. ...The Flood Warning continues for the following rivers in Illinois... Illinois River at Peoria affecting Peoria, Woodford and Tazewell Counties. Illinois River at Beardstown affecting Schuyler, Brown, Morgan and Cass Counties. Illinois River near Havana affecting Fulton, Mason and Cass Counties. .The following forecasts are based on observed precipitation, soil moisture conditions, and forecast precipitation. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Illinois River near Havana. * WHEN...Until further notice. * IMPACTS...At 19.5 feet, Access road to Anderson Lake north campground closed. * ADDITIONAL DETAILS... - At 8:45 AM CDT Saturday the stage was 19.8 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:45 AM CDT Saturday was 19.8 feet. - Forecast...The river is expected to fall to 17.5 feet Saturday, July 04. - Flood stage is 14.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  June 27, 2026, 9:45 am      Expires:  June 28, 2026, 1:45 am
Area:  Cass, IL; Fulton, IL; Mason, IL


Flood Warning issued June 27 at 9:45AM CDT until June 29 at 7:00AM CDT by NWS Lincoln IL

Summary: ...The Flood Warning is extended for the following rivers in Illinois... Illinois River at Henry affecting Marshall and Putnam Counties. ...The Flood Warning continues for the following rivers in Illinois... Illinois River at Peoria affecting Peoria, Woodford and Tazewell Counties. Illinois River at Beardstown affecting Schuyler, Brown, Morgan and Cass Counties. Illinois River near Havana affecting Fulton, Mason and Cass Counties. .The following forecasts are based on observed precipitation, soil moisture conditions, and forecast precipitation. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Illinois River at Henry. * WHEN...Until Monday morning. * IMPACTS...At 23.0 feet, Water begins to affect the marina in Henry along with minor flooding of land adjacent to the river. * ADDITIONAL DETAILS... - At 8:45 AM CDT Saturday the stage was 23.6 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:45 AM CDT Saturday was 23.9 feet. - Forecast...The river is expected to rise to a crest of 23.6 feet this afternoon. It will then fall below flood stage early Monday morning. - Flood stage is 23.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  June 27, 2026, 9:45 am      Expires:  June 28, 2026, 1:45 am
Area:  Marshall, IL; Putnam, IL


Flood Warning issued June 27 at 9:40AM CDT until June 29 at 7:00AM CDT by NWS Chicago IL

Summary: ...The Flood Warning continues for the following rivers in Illinois... Illinois River at La Salle affecting Bureau, Putnam and La Salle Counties. For the Illinois River (Upper)...including La Salle...Minor flooding is forecast. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Illinois River from Starved Rock Lock and Dam downstream to confluence with Big Bureau Creek, including the La Salle gauge. * WHEN...Until Monday morning. * IMPACTS...At 22.0 feet, Lower parking lot at Starved Rock State Park is inundated east of La Salle. High water levels begin to impact shipping interests along the river. * ADDITIONAL DETAILS... - At 8:45 AM CDT Saturday the stage was 21.2 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:45 AM CDT Saturday was 21.7 feet. - Forecast...The river is expected to fall below flood stage early Monday morning and continue falling into next week. - Flood stage is 20.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  June 27, 2026, 9:40 am      Expires:  June 28, 2026, 3:45 am
Area:  Bureau, IL; La Salle, IL; Putnam, IL