Weather Alert Watch
Severe Extreme Heat Warning

Extreme Heat Warning for Iowa; Johnson; Cedar +18 more

What: Dangerously hot conditions with heat index values up to 105. Impacts: Heat related illnesses increase significantly during extreme heat and high humidity events. Where: Portions of northwest and west central Illinois, east central and southeast Iowa,...

IA, IL +1Iowa; Johnson; Cedar; Muscatine; Scott; Keokuk; Washington; Louisa; Jefferson; Henry; Des Moines; Van Buren; Lee; Rock Island; Mercer; Henderson; Warren; Hancock; McDonough; Scotland; Clark

Official alert brief

WHAT

Dangerously hot conditions with heat index values up to 105.

WHERE

Portions of northwest and west central Illinois, east central and southeast Iowa, and northeast Missouri.

WHEN

Until 10 PM CDT this evening.

IMPACTS

Heat related illnesses increase significantly during extreme heat and high humidity events.

ADDITIONAL DETAILS

Thunderstorms and associated clouds may interrupt the heat at times today and especially on Friday.

Instructions

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.