EXTREME HEAT WARNING
EXTREME HEAT WARNING ISSUED JUNE 28 AT 2:00AM CDT UNTIL JULY 3 AT 12:00AM CDT
Effective: 2026-06-28 02:00:00 Expires: 2026-07-03 00:00:00 Issued by: NWS St Louis MO
* WHAT...DANGEROUSLY HOT CONDITIONS WITH HEAT INDEX VALUES UP TO 110EXPECTED.

* WHERE...IN ILLINOIS, CLINTON IL, WASHINGTON IL, AND RANDOLPH IL COUNTIES. IN MISSOURI, FRANKLIN MO, WARREN MO, AND SAINTE GENEVIEVE MO COUNTIES.

* WHEN...FROM NOON TODAY TO MIDNIGHT CDT THURSDAY NIGHT.

* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING EXTREME HEAT AND HIGH HUMIDITY EVENTS.
View Storm Reports Map — Know the difference between Watch, Warning, Advisory
CLINTON, WASHINGTON, RANDOLPH, WARREN, FRANKLIN, STE. GENEVIEVE
Get Alerts for Clinton