Extreme Heat Warning — Jun 29 for Northern Cook #11753686

EXTREME HEAT WARNING

EXTREME HEAT WARNING ISSUED JUNE 29 AT 2:02AM CDT UNTIL JULY 1 AT 10:00PM CDT

Effective: 2026-06-29 02:02:00 Expires: 2026-07-01 22:00:00 Issued by: NWS Chicago IL

Alert Text

* WHAT...DANGEROUSLY HOT CONDITIONS WITH HEAT INDEX VALUES AROUND105 EXPECTED EACH AFTERNOON.

* WHERE...CENTRAL COOK, NORTHERN COOK, AND SOUTHERN COOK COUNTIES.

* WHEN...FROM NOON TODAY TO 10 PM CDT WEDNESDAY.

* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING EXTREME HEAT AND HIGH HUMIDITY EVENTS.

More Information

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Target Area

NORTHERN COOK, CENTRAL COOK, SOUTHERN COOK