Iowa Severe Extreme Heat Warning | Effective 06/28/2026 22:15

Headline: 
Extreme Heat Warning issued June 29 at 12:15AM CDT until June 29 at 9:00PM CDT by NWS Omaha/Valley NE
Event: 
Extreme Heat Warning
Urgency: 
Expected
Effective: 
June 28, 2026 - 10:15pm
Expires: 
June 29, 2026 - 5:00pm
Description: 
* WHAT...Dangerously hot conditions with heat index values up to 110 expected. * WHERE...Harrison and Monona Counties. * WHEN...From 1 PM this afternoon to 9 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: 
Monona; Harrison
Forcast Office: 
NWS Omaha/Valley NE