Active Weather Alerts
Extreme Heat Warning
Issued: 2:51 PM Jun. 29, 2026 – National Weather Service
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 7 PM CDT TUESDAY... * WHAT...Dangerously hot conditions with heat index values up to 109 expected both today and Tuesday afternoon. Overnight heat indices will remain around 75 degrees, which will still be hazardous for anyone without shelter after the extreme heat in the afternoon. * WHERE...Marathon, Portage, Waushara, Wood, Calumet, Winnebago, Brown, Outagamie, Shawano, and Waupaca Counties. * WHEN...Until 7 PM CDT Tuesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. &&
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