⚠️ Extreme Heat Warning – Iowa; Johnson; Cedar; Muscatine; Scott; Keokuk; Washington; Louisa; Jefferson; Henry; Des Moines; Van Buren; Lee; Rock Island; Mercer; Henderson; Warren; Hancock; McDonough; Scotland; Clark – Sunday, June 28, 2026

Extreme Heat Warning issued June 28 at 9:35AM CDT until June 30 at 9:00PM CDT by NWS Quad Cities IA IL

Details

* WHAT…Dangerously hot and humid conditions with multiple days of
heat index values of 105 to 110 expected, along with nighttime
lows not dropping below 75 degrees.

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

* WHEN…From 1 PM this afternoon to 9 PM CDT Tuesday.

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

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.

This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.