Weather Warnings for Idaho

Issued by the National Weather Service

Current watches, warnings, and advisories for Idaho
Alerts Updated: July 20, 2026, 7:21 am  UTC


Heat Advisory issued July 20 at 12:04AM MDT until July 20 at 8:00PM MDT by NWS Pocatello ID

Summary: * WHAT...Temperatures up to 100 expected. * WHERE...Eastern Magic Valley, Shoshone/Lava Beds, Arco/Mud Lake Desert, Franklin/Eastern Oneida Region, Lower Snake River Plain, Marsh and Arbon Highlands, Raft River Region, Southern Hills/Albion Mountains, and Upper Snake River Plain. * WHEN...From noon today to 8 PM MDT this evening. * IMPACTS...Hot temperatures may cause heat illnesses.
Severity:  Moderate    Effective:  July 20, 2026, 12:04 am      Expires:  July 20, 2026, 8:00 pm
Area:  Shoshone/Lava Beds; Arco/Mud Lake Desert; Upper Snake River Plain; Lower Snake River Plain; Eastern Magic Valley; Southern Hills/Albion Mountains; Raft River Region; Marsh and Arbon Highlands; Franklin/Eastern Oneida Region


Heat Advisory issued July 19 at 9:16PM MDT until July 20 at 9:00PM MDT by NWS Boise ID

Summary: * WHAT...Temperatures up to 103 expected. * WHERE...Portions of southwest Idaho and southeast Oregon. * WHEN...From noon MDT /11 AM PDT/ to 9 PM MDT /8 PM PDT/ Monday. * IMPACTS...Hot temperatures may cause heat illnesses, especially for the young, elderly, and animals. * ADDITIONAL DETAILS...Warm overnight temperatures will limit recovery.
Severity:  Moderate    Effective:  July 19, 2026, 9:16 pm      Expires:  July 20, 2026, 4:15 am
Area:  Lower Treasure Valley; Upper Treasure Valley; Upper Weiser River; Malheur County; Oregon Lower Treasure Valley


Heat Advisory issued July 19 at 9:16PM MDT until July 20 at 9:00PM MDT by NWS Boise ID

Summary: * WHAT...Temperatures up to 100 expected. * WHERE...Southern Twin Falls County, Western Magic Valley, and Southwest Highlands. * WHEN...From noon to 9 PM MDT Monday. * IMPACTS...Hot temperatures may cause heat illnesses, especially for the young, elderly, and animals. * ADDITIONAL DETAILS...Warm overnight temperatures will limit recovery.
Severity:  Moderate    Effective:  July 19, 2026, 9:16 pm      Expires:  July 20, 2026, 4:15 am
Area:  Southwest Highlands; Western Magic Valley; Southern Twin Falls County


Air Quality Alert issued July 19 at 6:42PM PDT by NWS Spokane WA

Summary: An Air Quality Alert has been issued by the following agencies: Idaho Department of Environmental Quality in Lewiston Nez Perce Tribe * WHAT...Air Quality Advisory because of degraded air quality due to wildfire smoke. Air Quality Index is forecast to be Unhealthy for Sensitive Groups. * WHERE...Latah, Nez Perce, and Lewis Counties including the Nez Perce Reservation. * WHEN...Next update by 1200 PM PDT Monday, July 20th. * IMPACTS...Members of sensitive groups may experience health effects. The general public is less likely to be affected.
Severity:  Unknown    Effective:  July 19, 2026, 6:42 pm      Expires:  July 20, 2026, 12:00 pm
Area:  Latah, ID; Lewis, ID; Nez Perce, ID


Air Quality Alert issued July 19 at 6:42PM PDT by NWS Spokane WA

Summary: An Air Quality Alert has been issued by the following agencies: Idaho Department of Environmental Quality in Coeur d'Alene Coeur d'Alene Tribe Environmental Protection Agency * WHAT...Air Quality Advisory due to wildfire smoke. Air Quality Index is forecasted to be Unhealthy for Sensitive Groups. For the latest air quality readings, head to https://fire.airnow.gov or visit the Idaho Smoke Blog at www.idsmoke.blogspot.com. * WHERE...Boundary County, Bonner, Kootenai, Shoshone, Benewah Counties. * WHEN...Next update by 12 PM Monday, July 20th. * IMPACTS...Some members of the public may experience health effects; members of sensitive groups may experience more serious health effects.
Severity:  Unknown    Effective:  July 19, 2026, 6:42 pm      Expires:  July 20, 2026, 12:00 pm
Area:  Benewah, ID; Bonner, ID; Boundary, ID; Kootenai, ID; Shoshone, ID


Air Quality Alert issued July 19 at 1:48PM PDT by NWS Spokane WA

Summary: An Air Quality Alert has been issued by the following agencies: Idaho Department of Environmental Quality in Lewiston Nez Perce Tribe * WHAT...Air Quality Advisory because of degraded air quality due to wildfire smoke. Air Quality Index is forecast to be Unhealthy for Sensitive Groups. * WHERE...Latah, Nez Perce, and Lewis Counties including the Nez Perce Reservation. * WHEN...Next update by 1200 PM PDT Monday, July 20th. * IMPACTS...Members of sensitive groups may experience health effects. The general public is less likely to be affected.
Severity:  Unknown    Effective:  July 19, 2026, 1:48 pm      Expires:  July 20, 2026, 1:00 pm
Area:  Latah, ID; Lewis, ID; Nez Perce, ID


Air Quality Alert issued July 19 at 1:48PM PDT by NWS Spokane WA

Summary: An Air Quality Alert has been issued by the following agencies: Idaho Department of Environmental Quality in Coeur d'Alene Coeur d'Alene Tribe Environmental Protection Agency * WHAT...Air Quality Advisory due to wildfire smoke. Air Quality Index is forecasted to be Unhealthy for Sensitive Groups. For the latest air quality readings, head to https://fire.airnow.gov or visit the Idaho Smoke Blog at www.idsmoke.blogspot.com. * WHERE...Boundary County, Bonner, Kootenai, Shoshone, Benewah Counties. * WHEN...Next update by 12 PM Monday, July 20th. * IMPACTS...Some members of the public may experience health effects; members of sensitive groups may experience more serious health effects.
Severity:  Unknown    Effective:  July 19, 2026, 1:48 pm      Expires:  July 20, 2026, 1:00 pm
Area:  Benewah, ID; Bonner, ID; Boundary, ID; Kootenai, ID; Shoshone, ID


Air Quality Alert issued July 18 at 4:20PM MDT by NWS Missoula MT

Summary: * WHAT...Air Quality Advisory because of degraded air quality due to wildfire smoke. Air Quality Index is forecast to be Unhealthy for Sensitive Groups. * WHERE...Clearwater and Idaho Counties. * WHEN...Until noon 7/20/2026. * IMPACTS...Members of sensitive groups may experience health effects. The general public is less likely to be affected.
Severity:  Unknown    Effective:  July 18, 2026, 4:20 pm      Expires:  July 20, 2026, 1:00 pm
Area:  Clearwater, ID; Idaho, ID


Air Quality Alert issued July 17 at 11:49AM MDT by NWS Missoula MT

Summary: AQAMSO * WHAT...Air Quality Advisory due to smoke from wildfires. Air Quality Index ranging from Moderate to Unhealthy. * WHERE...All Areas on the Nez Perce Reservation. * WHEN...Until Monday, July 20, 2026, at 10:00am. * IMPACTS...Those who experience health effects from smoke include children under 18, elders, pregnant women, people with asthma or have difficulty breathing, diabetes, heart problems or otherwise compromised health, and people who have high exposure (those who work, exercise, or spend extensive time outdoors).
Severity:  Unknown    Effective:  July 17, 2026, 11:49 am      Expires:  July 20, 2026, 11:00 am
Area:  Orofino/Grangeville Region