Weather Alerts For Oregon, WI

# HEADLINE -------------------- EXTREME HEAT WARNING NOW IN EFFECT UNTIL 7 PM CDT WEDNESDAY # DETAILS -------------------- WHAT Dangerously hot conditions with daytime heat index values up to 106 degrees each day through Wednesday, with overnight heat index values each night in the upper 70s. WHERE Portions of east central, south central, and southeast Wisconsin. WHEN Until 7 PM CDT Wednesday. 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, but still expecting high heat index values immediately inland. ISSUED AT Monday, June 29, 2026 at 1:04 PM CDT ISSUED BY National Weather Service Milwaukee/Sullivan WI HEADER URGENT - WEATHER MESSAGE # 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. Stay cool, stay hydrated, stay informed. # AREAS AFFECTED -------------------- Lafayette, Washington, Columbia, Dane, Dodge, Fond du Lac, Green, Green Lake, Iowa, Jefferson, Kenosha, Marquette, Milwaukee, Ozaukee, Racine, Rock, Sauk, Sheboygan, Walworth, Waukesha Including the cities of Beaver Dam, Cedarburg, Brodhead, Waukesha, Argyle, Prairie Du Sac, Baraboo, Elkhorn, Brookfield, Oxford, Dodgeville, Berlin, Muskego, Barneveld, Monroe, Whitewater, Beloit, Princeton, New Berlin, Columbus, Endeavor, Howards Grove, Sauk City, Hartford, Darlington, Mequon, Shullsburg, Janesville, Germantown, Portage, Mayville, Racine, Lake Geneva, Plymouth, Mineral Point, Montello, Markesan, Waupun, Lake Wisconsin, West Bend, Watertown, Fort Atkinson, East Troy, Kenosha, Grafton, Madison, Fond Du Lac, Blanchardville, Neshkoro, Lodi, Milwaukee, Benton, Jefferson, Sheboygan Falls, Belmont, Oostburg, Menomonee Falls, Westfield, Delavan, and Reedsburg