⚠️ Extreme Heat Warning – Marquette; Green Lake; Fond Du Lac; Sheboygan; Sauk; Columbia; Dodge; Washington; Ozaukee; Iowa; Dane; Jefferson; Waukesha; Milwaukee; Lafayette; Green; Rock; Walworth; Racine; Kenosha – Monday, June 29, 2026

Extreme Heat Warning issued June 29 at 5:36AM CDT until June 30 at 7:00PM CDT by NWS Milwaukee/Sullivan WI

Details

* WHAT…Dangerously hot conditions with daytime heat index values
up to 107 degrees today and Tuesday, with overnight heat index
values tonight remaining in the upper 70s.

* WHERE…Portions of east central, south central, and southeast
Wisconsin.

* WHEN…From noon today to 7 PM CDT Tuesday.

* IMPACTS…Heat related illnesses increase significantly during
extreme heat and high humidity events.

* ADDITIONAL DETAILS…Heat index values along Lake Michigan will be
a few degrees cooler today, but still expecting high heat index
values immediately inland.

Instructions

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.

Stay cool, stay hydrated, stay informed.

This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.