Headline:
Extreme Heat Watch issued August 30 at 12:27PM CDT until September 4 at 8:00PM CDT by NWS St Louis MO
Event:
Extreme Heat Watch
Urgency:
Future
Effective:
August 30, 2026 - 10:27am
Expires:
August 31, 2026 - 1:30am
Description:
* WHAT...Dangerously hot conditions with heat index values of 102 to
108 degrees, and morning lows from 75 to 80 degrees, possible for
several consecutive days.
* WHERE...In Illinois, Clinton IL, Washington IL, Madison IL, Monroe
IL, Randolph IL, and Saint Clair IL Counties. In Missouri, Saint
Charles MO, Saint Louis City MO, and Saint Louis MO Counties.
* WHEN...From Monday afternoon through Friday evening.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.
* ADDITIONAL DETAILS...In addition to near-record afternoon
temperatures, warm morning lows may provide little relief,
especially Wednesday through Friday.
Instruction:
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Monitor the latest forecasts and warnings for updates.
Area Description:
Clinton; Washington; Randolph; Madison; St. Clair; Monroe; St. Charles; St. Louis; St. Louis City
Forcast Office:
NWS St Louis MO
Sender:
w-nws.webmaster@noaa.gov