Iowa, Illinois, Missouri Severe Extreme Heat Warning | Effective 07/25/2026 00:49

Headline: 
Extreme Heat Warning issued July 25 at 2:49AM CDT until July 26 at 9:00PM CDT by NWS Quad Cities IA IL
Event: 
Extreme Heat Warning
Urgency: 
Expected
Effective: 
July 25, 2026 - 12:49am
Expires: 
July 25, 2026 - 10:15am
Description: 
* WHAT...For the Extreme Heat Warning, dangerously hot conditions with heat index values between 100 to 110 expected. For the Extreme Heat Watch, dangerously hot conditions with heat index values between 100 to 110 possible. * WHERE...Portions of north central, northwest, and west central Illinois, east central, northeast, and southeast Iowa, and northeast Missouri. * WHEN...For the Extreme Heat Warning, from 11 AM to 9 PM CDT Sunday. For the Extreme Heat Watch, from Sunday night through Monday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...Little relief is expected Sunday night with low temperatures in the mid to upper 70s.
Instruction: 
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.
Area Description: 
Buchanan; Delaware; Dubuque; Benton; Linn; Jones; Jackson; Iowa; Johnson; Cedar; Clinton; Muscatine; Scott; Keokuk; Washington; Louisa; Jefferson; Henry; Des Moines; Van Buren; Lee; Whiteside; Rock Island; Henry; Bureau; Putnam; Mercer; Henderson; Warren; Hancock; McDonough; Scotland; Clark
Forcast Office: 
NWS Quad Cities IA IL