Iowa, Illinois, Missouri Moderate Heat Advisory | Effective 08/31/2026 23:42

Headline: 
Heat Advisory issued September 1 at 1:42AM CDT until September 3 at 7:00PM CDT by NWS Quad Cities IA IL
Event: 
Heat Advisory
Urgency: 
Expected
Effective: 
August 31, 2026 - 11:42pm
Expires: 
September 1, 2026 - 7:45am
Description: 
* WHAT...Heat index values up to 104. * WHERE...Portions of northwest and west central Illinois, east central and southeast Iowa, and northeast Missouri. * WHEN...Until 7 PM CDT Thursday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Instruction: 
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
Area Description: 
Iowa; Johnson; Cedar; Muscatine; Scott; Keokuk; Washington; Louisa; Jefferson; Henry; Des Moines; Van Buren; Lee; Rock Island; Henry; Mercer; Henderson; Warren; Hancock; McDonough; Scotland; Clark
Forcast Office: 
NWS Quad Cities IA IL
Sender: 
w-nws.webmaster@noaa.gov