Headline:
Heat Advisory issued September 18 at 2:00PM CDT until September 19 at 8:00PM CDT by NWS St Louis MO
Event:
Heat Advisory
Urgency:
Expected
Effective:
September 18, 2026 - 12:00pm
Expires:
September 19, 2026 - 3:00am
Description:
* WHAT...Heat index values up to 105.
* WHERE...Portions of south central and southwest Illinois and
central, east central, and southeast Missouri.
* WHEN...Until 8 PM CDT Saturday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
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:
Bond; Clinton; Marion; Washington; Randolph; Madison; St. Clair; Monroe; Moniteau; Cole; Osage; 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