Iowa Severe Extreme Heat Warning | Effective 06/28/2026 23:34

Headline: 
Extreme Heat Warning issued June 29 at 1:34AM CDT until June 30 at 9:00PM CDT by NWS Des Moines IA
Event: 
Extreme Heat Warning
Urgency: 
Expected
Effective: 
June 28, 2026 - 11:34pm
Expires: 
June 29, 2026 - 9:45am
Description: 
* WHAT...Dangerously hot conditions with heat index values above 100 expected. * WHERE...Most of central Iowa. * WHEN...Until 9 PM CDT Tuesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...Extreme heat will persist through much of next week, potentially including the 4th of July weekend.
Instruction: 
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.
Area Description: 
Emmet; Kossuth; Palo Alto; Pocahontas; Humboldt; Wright; Sac; Calhoun; Webster; Hamilton; Hardin; Crawford; Carroll; Greene; Boone; Story; Marshall; Tama; Audubon; Guthrie; Dallas; Polk; Jasper; Poweshiek; Cass; Adair; Madison; Warren; Marion; Mahaska; Adams; Union; Clarke; Lucas; Monroe; Wapello; Taylor; Ringgold; Decatur; Wayne; Appanoose; Davis
Forcast Office: 
NWS Des Moines IA