Green Bay, Wis. – Drivers in Wisconsin should brace for changing conditions as thunder chances today give way to a frost threat by late Monday night. Farmers and gardeners in north-central counties could see patchy frost early Tuesday, raising concerns for crops and late-summer plants.
According to the National Weather Service in Green Bay, scattered showers and isolated thunderstorms may develop Sunday afternoon, but severe weather is not expected. By Monday night, cooler air will settle across north-central Wisconsin, dropping temperatures into the upper 40s. Frost pockets are most likely in low-lying and rural areas, including stretches along Highway 29 and Highway 51.
Travelers across Wausau, Rhinelander, and the Northwoods should use caution during the early morning commute Tuesday, as patchy frost and areas of fog may reduce visibility. Residents are urged to protect sensitive vegetation, cover garden plants, and prepare for chilly overnight lows.
Green Bay, Appleton, and Oshkosh will see more moderate conditions, with overnight lows near 50 and sunny skies dominating through midweek. Daytime highs will climb steadily back into the mid-70s by Wednesday and Thursday, offering a mild late-August stretch.
The National Weather Service says the region should remain dry after Monday night, with only a slight chance of showers returning Thursday afternoon. Cooler nights will linger through the week, keeping early mornings brisk before sunshine warms afternoons.
Warnings for frost are not currently in effect, but advisories could be issued if temperatures dip further than expected.
Five Day Forecast for Green Bay, Wisconsin
- Monday: Mostly sunny, high near 68. Low around 47.
- Tuesday: Sunny, high near 71. Patchy frost possible early. Low near 48.
- Wednesday: Sunny, high near 74. Low around 57.
- Thursday: Slight chance of afternoon showers, high near 73. Low near 55.
- Friday: Mostly sunny, high near 75.
