Weather Warnings for Illinois

Issued by the National Weather Service

Current watches, warnings, and advisories for Illinois
Alerts Updated: April 7, 2026, 7:54 am  UTC


Freeze Warning issued April 7 at 2:54AM CDT until April 7 at 9:00AM CDT by NWS Lincoln IL

Summary: * WHAT...Sub-freezing temperatures as low as 30. * WHERE...De Witt, McLean, Peoria, Piatt, Tazewell, Woodford, Champaign, Douglas, Edgar, and Vermilion Counties. * WHEN...Until 9 AM CDT this morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
Severity:  Moderate    Effective:  April 7, 2026, 2:54 am      Expires:  April 7, 2026, 9:00 am
Area:  Peoria; Woodford; Tazewell; McLean; De Witt; Piatt; Champaign; Vermilion; Douglas; Edgar


Flood Warning issued April 6 at 10:06PM CDT until April 9 at 7:00PM CDT by NWS Milwaukee/Sullivan WI

Summary: ...The Flood Warning is extended for the following rivers in Wisconsin... Baraboo River At Reedsburg affecting Sauk County. ...The Flood Warning continues for the following rivers in Wisconsin...Illinois... Fox River Lower Near New Munster affecting Lake and Kenosha Counties. Wisconsin River At Portage affecting Columbia County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Fox River Lower near New Munster. * WHEN...Until Thursday evening. * IMPACTS...At 12.0 feet, Water is up to the first floor levels of some homes in the Town of Wheatland and Village of Salem Lakes area along Riverside Drive and Shorewood Drive. * ADDITIONAL DETAILS... - At 9:00 PM CDT Monday the stage was 12.1 feet. - Bankfull stage is 10.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:00 PM CDT Monday was 12.4 feet. - Forecast...The river is expected to fall below flood stage early Thursday afternoon and continue falling to 9.6 feet Monday, April 13. - Flood stage is 11.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 6, 2026, 10:06 pm      Expires:  April 7, 2026, 10:15 am
Area:  Lake, IL; Kenosha, WI


Flood Warning issued April 6 at 9:02PM CDT until April 7 at 9:00PM CDT by NWS Quad Cities IA IL

Summary: ...The Flood Warning continues for the following rivers in Iowa... Illinois... Iowa River at Marengo affecting Iowa and Benton Counties. Wapsipinicon River near De Witt 4S affecting Scott and Clinton Counties. Rock River at Moline affecting Rock Island and Henry IL Counties. ...The Flood Warning is extended for the following rivers in Illinois... Rock River near Joslin affecting Rock Island, Whiteside and Henry IL Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Rock River at Moline. * WHEN...Until late tomorrow evening. * IMPACTS...At 12.0 feet, Minor Flood Stage. Water affects residences near the 27th Street bridge. Water is over portions of 60th St south of Green Valley Sports Complex and portions of 56th Ave along the north side of the river. * ADDITIONAL DETAILS... - At 8:30 PM CDT Monday the stage was 12.0 feet. - Forecast...The river is expected to rise to a crest of 12.1 feet just after midnight tonight. It will then fall below flood stage early tomorrow afternoon. - Flood stage is 12.0 feet.
Severity:  Severe    Effective:  April 6, 2026, 9:02 pm      Expires:  April 7, 2026, 9:00 pm
Area:  Henry, IL; Rock Island, IL


Flood Warning issued April 6 at 9:02PM CDT until April 8 at 7:00AM CDT by NWS Quad Cities IA IL

Summary: ...The Flood Warning continues for the following rivers in Iowa... Illinois... Iowa River at Marengo affecting Iowa and Benton Counties. Wapsipinicon River near De Witt 4S affecting Scott and Clinton Counties. Rock River at Moline affecting Rock Island and Henry IL Counties. ...The Flood Warning is extended for the following rivers in Illinois... Rock River near Joslin affecting Rock Island, Whiteside and Henry IL Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Rock River near Joslin. * WHEN...Until Wednesday morning. * IMPACTS...At 12.5 feet, Water affects some summer cottages along the river. * ADDITIONAL DETAILS... - At 7:45 PM CDT Monday the stage was 12.5 feet. - Forecast...The river is expected to fall below flood stage late tomorrow evening and continue falling to 9.1 feet Monday, April 13. - Flood stage is 12.0 feet.
Severity:  Severe    Effective:  April 6, 2026, 9:02 pm      Expires:  April 7, 2026, 9:15 pm
Area:  Henry, IL; Rock Island, IL; Whiteside, IL


Flood Warning issued April 6 at 9:47PM EDT until April 15 at 12:40PM EDT by NWS Indianapolis IN

Summary: ...The Flood Warning continues for the following rivers in Indiana... Illinois... Wabash River at Lafayette down to Riverton. .Lowland flooding will continue along the Wabash River this week. The crest is below Montezuma...but will not reach Vincennes until this weekend. Minor flooding should end by this weekend on the upper Wabash...but is expected to continue into early next week on parts of the middle and lower Wabash. Dry weather is expected into Thursday. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Wabash River at Riverton. * WHEN...Until Wednesday, April 15. * IMPACTS...At 18.5 feet, High water surrounds elevated river cabins. County roads to these cabins are impassable. Agricultural flooding is in progress. Seep water develops behind levees. * ADDITIONAL DETAILS... - At 9:00 PM EDT Monday /8:00 PM CDT Monday/ the stage was 17.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:00 PM EDT Monday /8:00 PM CDT Monday/ was 17.0 feet. - Forecast...The river is expected to rise to a crest of 18.6 feet Friday morning. It will then fall below flood stage Wednesday, April 15. - Flood stage is 15.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 6, 2026, 9:47 pm      Expires:  April 7, 2026, 2:00 pm
Area:  Crawford, IL; Lawrence, IL; Knox, IN; Sullivan, IN


Flood Warning issued April 6 at 9:47PM EDT until April 15 at 10:00AM EDT by NWS Indianapolis IN

Summary: ...The Flood Warning continues for the following rivers in Indiana... Illinois... Wabash River at Lafayette down to Riverton. .Lowland flooding will continue along the Wabash River this week. The crest is below Montezuma...but will not reach Vincennes until this weekend. Minor flooding should end by this weekend on the upper Wabash...but is expected to continue into early next week on parts of the middle and lower Wabash. Dry weather is expected into Thursday. * WHAT...Minor flooding is forecast. * WHERE...Wabash River at Hutsonville Legacy Power Plant Site. * WHEN...Until Wednesday, April 15. * IMPACTS...At 20.0 feet, Leaverton Park in Palestine and park in Hutsonville begin to flood. Agricultural flooding spreads to higher land. Seep water is noticeable behind levees. Some elevated river cottages are surrounded by water. Several county or township roads east of Lincoln Heritage Trail between Palestine and Hutsonville in Crawford County Illinois are impassable. * ADDITIONAL DETAILS... - There is no current observed data. - Forecast...The river is expected to rise to a crest of 20.0 feet early Friday morning. It will then fall below flood stage Tuesday, April 14. - Flood stage is 16.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 6, 2026, 9:47 pm      Expires:  April 7, 2026, 2:00 pm
Area:  Crawford, IL; Lawrence, IL; Knox, IN; Sullivan, IN


Flood Warning issued April 6 at 9:47PM EDT until April 13 at 2:00PM EDT by NWS Indianapolis IN

Summary: ...The Flood Warning continues for the following rivers in Indiana... Illinois... Wabash River at Lafayette down to Riverton. .Lowland flooding will continue along the Wabash River this week. The crest is below Montezuma...but will not reach Vincennes until this weekend. Minor flooding should end by this weekend on the upper Wabash...but is expected to continue into early next week on parts of the middle and lower Wabash. Dry weather is expected into Thursday. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Wabash River at Terre Haute. * WHEN...Until Monday, April 13. * IMPACTS...At 20.5 feet, Residential property of about 50 river cabins begin to flood. North Lake and Izaak Walton Areas near West Terre Haute begin to flood. Flooding closes more county roads. Lowland agricultural flooding is in progress. * ADDITIONAL DETAILS... - At 9:30 PM EDT Monday /8:30 PM CDT Monday/ the stage was 20.3 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:30 PM EDT Monday /8:30 PM CDT Monday/ was 20.3 feet. - Forecast...The river is expected to rise to a crest of 20.5 feet early tomorrow afternoon. It will then fall below flood stage Monday, April 13. - Flood stage is 16.5 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 6, 2026, 9:47 pm      Expires:  April 7, 2026, 2:00 pm
Area:  Clark, IL; Crawford, IL; Sullivan, IN; Vigo, IN


Flood Warning issued April 6 at 8:31PM CDT until April 9 at 7:00PM CDT by NWS Chicago IL

Summary: ...The Flood Warning continues for the following rivers in Illinois... Illinois River at La Salle affecting La Salle, Putnam and Bureau Counties. * 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 Thursday evening. * 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 7:45 PM CDT Monday the stage was 22.4 feet. - Forecast...The river is expected to fall below flood stage early Thursday afternoon and continue falling. - Flood stage is 20.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 6, 2026, 8:31 pm      Expires:  April 7, 2026, 2:45 pm
Area:  Bureau, IL; La Salle, IL; Putnam, IL


Flood Warning issued April 6 at 8:29PM CDT by NWS Lincoln IL

Summary: ...The Flood Warning continues for the following rivers in Illinois... Illinois River at Peoria affecting Peoria, Woodford and Tazewell Counties. Illinois River near Havana affecting Cass, Fulton and Mason Counties. Illinois River at Beardstown affecting Cass, Brown, Morgan and Schuyler 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 Beardstown. * WHEN...Until further notice. * IMPACTS...At 18.0 feet, Seepage problems begin in the Lost Creek Drainage and Levee District. * ADDITIONAL DETAILS... - At 7:45 PM CDT Monday the stage was 14.4 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 7:45 PM CDT Monday was 14.4 feet. - Forecast...The river is expected to rise to 16.9 feet Sunday morning. Additional rises are possible thereafter. - Flood stage is 14.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 6, 2026, 8:29 pm      Expires:  April 7, 2026, 1:00 pm
Area:  Brown, IL; Cass, IL; Morgan, IL; Schuyler, IL


Flood Warning issued April 6 at 8:29PM CDT by NWS Lincoln IL

Summary: ...The Flood Warning continues for the following rivers in Illinois... Illinois River at Peoria affecting Peoria, Woodford and Tazewell Counties. Illinois River near Havana affecting Cass, Fulton and Mason Counties. Illinois River at Beardstown affecting Cass, Brown, Morgan and Schuyler Counties. .The following forecasts are based on observed precipitation, soil moisture conditions, and forecast precipitation. * WHAT...Minor flooding is occurring and moderate flooding is forecast. * WHERE...Illinois River near Havana. * WHEN...Until further notice. * ADDITIONAL DETAILS... - At 7:45 PM CDT Monday the stage was 15.2 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 7:45 PM CDT Monday was 15.2 feet. - Forecast...The river is expected to rise to a crest of 17.2 feet Friday evening. - Flood stage is 14.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 6, 2026, 8:29 pm      Expires:  April 7, 2026, 1:00 pm
Area:  Cass, IL; Fulton, IL; Mason, IL


Flood Warning issued April 6 at 8:29PM CDT until April 10 at 7:00PM CDT by NWS Lincoln IL

Summary: ...The Flood Warning continues for the following rivers in Illinois... Illinois River at Peoria affecting Peoria, Woodford and Tazewell Counties. Illinois River near Havana affecting Cass, Fulton and Mason Counties. Illinois River at Beardstown affecting Cass, Brown, Morgan and Schuyler Counties. .The following forecasts are based on observed precipitation, soil moisture conditions, and forecast precipitation. * WHAT...Minor flooding is forecast. * WHERE...Illinois River at Peoria. * WHEN...From Tuesday evening to Friday evening. * IMPACTS...At 18.0 feet, Some flooding begins to bottomland not protected by levees. * ADDITIONAL DETAILS... - At 7:45 PM CDT Monday the stage was 17.0 feet. - Forecast...The river is expected to rise above flood stage tomorrow evening to a crest of 18.3 feet early Wednesday afternoon. It will then fall below flood stage early Friday afternoon. - Flood stage is 18.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 6, 2026, 8:29 pm      Expires:  April 7, 2026, 1:00 pm
Area:  Peoria, IL; Tazewell, IL; Woodford, IL


Flood Warning issued April 6 at 8:26PM CDT until April 11 at 7:00PM CDT by NWS Chicago IL

Summary: ...The National Weather Service in Chicago IL has issued a Flood Warning for the following rivers in Illinois... Fox River at Algonquin Lock & Dam tailwater affecting McHenry, Lake IL and Kane Counties. * WHAT...Minor flooding is forecast. * WHERE...Fox River from Johnsburg downstream to Red Gate Road in St. Charles, including the Algonquin Lock & Dam tailwater gauge. * WHEN...From Tuesday afternoon to Saturday evening. * IMPACTS...At 9.5 feet, Fox River Drive threatened in East Dundee. Boathouses threatened along the river in Cary. * ADDITIONAL DETAILS... - At 7:30 PM CDT Monday the stage was 9.4 feet. - Forecast...The river is expected to rise above flood stage Tuesday afternoon to a crest of 9.7 feet Wednesday evening. It will then fall below flood stage early Saturday afternoon. - Flood stage is 9.5 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 6, 2026, 8:26 pm      Expires:  April 7, 2026, 2:30 pm
Area:  Kane, IL; Lake, IL; McHenry, IL


Flood Warning issued April 6 at 8:23PM CDT until April 10 at 1:00PM CDT by NWS Chicago IL

Summary: ...The National Weather Service in Chicago IL has issued a Flood Warning for the following rivers in Illinois... Des Plaines River at Lincolnshire affecting Cook and Lake IL Counties. For the Des Plaines River...including Russell, Gurnee, Lincolnshire...Minor flooding is forecast. * WHAT...Minor flooding is forecast. * WHERE...Des Plaines River from Townline Road in Libertyville downstream to Palatine Road in Prospect Heights, including the Lincolnshire gauge. * WHEN...From Tuesday afternoon to early Friday afternoon. * IMPACTS...At 13.0 feet, Low-lying trails in Wright Woods Forest Preserve are inundated. * ADDITIONAL DETAILS... - At 7:45 PM CDT Monday the stage was 12.0 feet. - Forecast...The river is expected to rise above flood stage Tuesday afternoon to a crest of 13.1 feet early Thursday morning. It will then fall below flood stage Friday morning. - Flood stage is 12.5 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 6, 2026, 8:23 pm      Expires:  April 7, 2026, 2:30 pm
Area:  Cook, IL; Lake, IL


Flood Warning issued April 6 at 8:23PM CDT until April 10 at 1:00PM CDT by NWS Chicago IL

Summary: ...The Flood Warning continues for the following rivers in Illinois... Des Plaines River near Gurnee affecting Lake IL County. Des Plaines River near Russell affecting Lake IL County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Des Plaines River from US-41 in Gurnee downstream to Townline Road in Vernon Hills, including the Gurnee gauge. * WHEN...Until early Friday afternoon. * IMPACTS...At 9.0 feet, Kilbourne Road and Emerald Avenue threatened near Grand Avenue in Gurnee. * ADDITIONAL DETAILS... - At 7:30 PM CDT Monday the stage was 8.1 feet. - Forecast...The river is expected to rise to a crest of 8.4 feet Tuesday evening. It will then fall below flood stage Friday morning. - Flood stage is 7.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 6, 2026, 8:23 pm      Expires:  April 7, 2026, 2:30 pm
Area:  Lake, IL


Flood Warning issued April 6 at 8:23PM CDT until April 9 at 4:00PM CDT by NWS Chicago IL

Summary: ...The Flood Warning continues for the following rivers in Illinois... Des Plaines River near Gurnee affecting Lake IL County. Des Plaines River near Russell affecting Lake IL County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Des Plaines River from IL/WI state line downstream to US-41 in Gurnee, including the Russell gauge. * WHEN...Until Thursday afternoon. * IMPACTS...At 9.5 feet, Residential structures threatened along Russell Road between the river and Kilbourne Road. Industrial parking lots threatened along Kilbourne Road. * ADDITIONAL DETAILS... - At 7:30 PM CDT Monday the stage was 8.8 feet. - Forecast...The river is expected to fall below flood stage late Thursday morning and continue falling. - Flood stage is 7.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  April 6, 2026, 8:23 pm      Expires:  April 7, 2026, 2:30 pm
Area:  Lake, IL