Green Bay, Wis. – Wisconsin is heading into an unusually hot start to October, with temperatures climbing into the mid-to-upper 80s by Friday and Saturday, raising the potential for record highs across parts of the state.
According to the National Weather Service in Green Bay, late-season warmth will persist through the weekend, with Friday and Saturday expected to bring the hottest conditions. Highs may reach 88°F in areas away from the lakeshore, while cooler readings are likely closer to Lake Michigan and Green Bay.
Communities including Appleton, Oshkosh, and Wausau could see temperatures approaching or surpassing long-standing records. Officials urge residents to stay hydrated and limit strenuous outdoor activity during peak afternoon heat, especially for children, seniors, and those working outside.
The warm stretch will also extend travel risks for drivers, as heat may cause minor pavement buckling on some highways. Energy demand is expected to climb as residents continue running air conditioning, and utilities recommend conserving power during the hottest hours.
Relief is not expected until Sunday afternoon or evening, when a chance of showers will bring slightly cooler conditions into early next week.
Five Day Forecast for Green Bay, Wisconsin
- Wednesday: Sunny, highs 70–78°F
- Thursday: Mostly sunny, highs 79–84°F
- Friday: Record heat possible, highs 79–88°F
- Saturday: Near-record warmth, highs 78–87°F
- Sunday: Scattered showers late, highs 74–83°F
