Iowa, Illinois, Missouri Severe Extreme Heat Watch | Effective 07/26/2026 08:10

Headline: 
Extreme Heat Watch issued July 26 at 10:10AM CDT until July 27 at 10:00PM CDT by NWS Quad Cities IA IL
Event: 
Extreme Heat Watch
Urgency: 
Future
Effective: 
July 26, 2026 - 8:10am
Expires: 
July 26, 2026 - 4:15pm
Description: 
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM 9 PM CDT THIS EVENING THROUGH MONDAY EVENING... * WHAT...For the Extreme Heat Warning, a dangerous combination of oppressively humid and hot conditions with heat index values between 100 to 110 expected. For the Extreme Heat Watch, continued dangerously hot conditions possible with potential heat index values between 100 to 110. * 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, until 9 PM CDT this evening. For the Extreme Heat Watch, from 9 PM CDT this evening through Monday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...Little relief will occur tonight 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
Sender: 
w-nws.webmaster@noaa.gov