Headline:
Extreme Heat Warning issued August 15 at 1:36AM CDT until August 16 at 9:00PM CDT by NWS St Louis MO
Event:
Extreme Heat Warning
Urgency:
Expected
Effective:
August 14, 2026 - 11:36pm
Expires:
August 15, 2026 - 2:45pm
Description:
* WHAT...Dangerously hot conditions with heat index values up to 111.
* WHERE...Portions of south central and southwest Illinois and
central, east central, and southeast Missouri.
* WHEN...Until 9 PM CDT Sunday.
* 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.
Area Description:
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
Forcast Office:
NWS St Louis MO
Sender:
w-nws.webmaster@noaa.gov