Heat Advisory

Locations Affected

Appleton, WI ∙ Oshkosh, WI ∙ Fremont, WI ∙ Sugar Bush, WI ∙ Holton, WI ∙ Doty, WI ∙ Minocqua, WI ∙ Brighton, WI ∙ Center, WI ∙ Hazelhurst, WI

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service Green Bay WI 343 AM CDT Sat Jun 21 2025 ...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 7 PM CDT MONDAY... * WHAT...Heat index values of 95 to 105 expected this afternoon and Sunday afternoon, with values of 90 to 95 on Monday afternoon. The highest heat indexes will occur from central Wisconsin to northeast Wisconsin. Low temperatures in the mid to upper 70s tonight and Sunday night will provide minimal relief from the heat and humidity. * WHERE...Portions of central, east central, north central, and northeast Wisconsin. * WHEN...From noon today to 7 PM CDT Monday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. 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. 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.

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