Iowa Severe Extreme Heat Warning | Effective 06/27/2026 10:50

Headline: 
Extreme Heat Warning issued June 27 at 12:50PM CDT until June 30 at 9:00PM CDT by NWS Des Moines IA
Event: 
Extreme Heat Warning
Urgency: 
Expected
Effective: 
June 27, 2026 - 10:50am
Expires: 
June 27, 2026 - 9:00pm
Description: 
* WHAT...Dangerously hot conditions with heat index values up to 110 expected. * WHERE...Portions of northwest, western, central and southern Iowa. * WHEN...From 1 PM Sunday to 9 PM CDT Tuesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...Excessive 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.
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