⚠️ Extreme Heat Watch – Buchanan; Delaware; Dubuque; Benton; Linn; Jones; Jackson; Iowa; Johnson; Cedar; Clinton; Muscatine; Scott; Keokuk; Washington; Louisa; Jefferson; Henry; Des Moines; Van Buren; Lee; Jo Daviess; Stephenson; Carroll; Whiteside; Rock Island; Henry; Bureau; Putnam; Mercer; Henderson; Warren; Hancock; McDonough; Scotland; Clark – Saturday, June 27, 2026

Extreme Heat Watch issued June 27 at 1:28AM CDT until June 30 at 9:00PM CDT by NWS Quad Cities IA IL

Details

* WHAT…Dangerously hot conditions with heat index exceeding 100
degrees multiple days.

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

* WHEN…From Sunday afternoon through Tuesday evening.

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

* ADDITIONAL DETAILS…There is the possibility that excessive heat
will last for much of next week. Thunderstorms and associated
cloud debris may interrupt the excessive heat at times late in the
week.

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.