Green Bay, Wis. – Cooler air has settled into Wisconsin, bringing the chance for patchy frost in far northern counties as overnight lows dip into the upper 30s Monday and Tuesday nights. The National Weather Service says daytime highs will stay below normal, with much of the state topping out in the 60s through midweek.
According to the National Weather Service in Green Bay, a few showers with isolated rumbles of thunder remain possible Sunday afternoon, mainly over north-central Wisconsin. High pressure will then build in, bringing quieter and mostly dry conditions through at least Wednesday.
In Green Bay, highs will hover in the mid to upper 60s through Wednesday, climbing slightly into the 70s late week. Rhinelander and other northern towns could see the coldest nights, where clear skies and light winds may allow frost to form on low-lying surfaces. Farmers and gardeners should consider covering sensitive plants.
Travel across Wisconsin should be largely unaffected after Sunday’s showers, with no widespread hazards expected beyond localized slick spots from passing rain.
Conditions will begin to moderate toward Thursday and Friday, with temperatures recovering closer to seasonal normals. Additional advisories are possible if frost develops early this week.
Five Day Forecast for Green Bay, WI
- Sunday: Showers possible with thunder, highs 56–68°
- Monday: Mostly cloudy, highs 60–68°
- Tuesday: Partly sunny, highs 64–71°
- Wednesday: Dry and cool, highs 69–74°
- Thursday: Slight chance of showers, highs 67–75°
