Iowa, Illinois, Missouri Severe Extreme Heat Warning | Effective 07/03/2026 01:24

Headline: 
Extreme Heat Warning issued July 3 at 3:24AM CDT until July 3 at 10:00PM CDT by NWS Quad Cities IA IL
Event: 
Extreme Heat Warning
Urgency: 
Expected
Effective: 
July 3, 2026 - 1:24am
Expires: 
July 3, 2026 - 10:00am
Description: 
* WHAT...Dangerously hot and humid conditions with continued heat index values of 100 to 105 expected. * WHERE...Portions of west central Illinois, southeast Iowa, and northeast Missouri. * WHEN...Until 10 PM CDT this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.
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: 
Jefferson; Henry; Des Moines; Van Buren; Lee; Henderson; Warren; Hancock; McDonough; Scotland; Clark
Forcast Office: 
NWS Quad Cities IA IL