⚠️ Extreme Heat Warning – Clinton; Washington; Randolph; Madison; St. Clair; Monroe; Boone; Moniteau; Cole; Osage; Callaway; Montgomery; Gasconade; Warren; St. Charles; Franklin; St. Louis; St. Louis City; Jefferson; Crawford; Washington; St. Francois; Ste. Genevieve; Iron; Madison; Reynolds – Friday, August 14, 2026

Extreme Heat Warning issued August 14 at 4:03AM CDT until August 15 at 9:00PM CDT by NWS St Louis MO

Details

* WHAT…Dangerously hot conditions with heat index values up to 112.

* WHERE…Portions of south central and southwest Illinois and
central, east central, and southeast Missouri.

* WHEN…Until 9 PM CDT Saturday.

* 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.

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