Green Bay, WI – Residents across northeast Wisconsin are waking up to a Frost Advisory in effect from 3 a.m. to 9 a.m. Wednesday, October 8, as temperatures drop to near 32°F. Gardeners, homeowners, and farmers are urged to protect sensitive plants and outdoor vegetation before sunrise to prevent frost damage.
According to the National Weather Service in Green Bay, the advisory covers Waupaca, Outagamie, Calumet, Brown, Winnebago, and Waushara counties, including the Fox Valley region. Skies will clear by midmorning, followed by abundant sunshine and highs in the mid-60s—a sharp rebound after the coldest morning of the week.
Frost formation could occur on rural roads and low-lying areas, including stretches of Highway 41 and 29, where reduced visibility may affect early commuters. Drivers are encouraged to allow extra time and use caution during the early hours.
Looking ahead, Thursday through Monday will bring mostly sunny skies with daytime highs ranging from 65°F to 70°F, ideal for pumpkin patch visits, leaf viewing, and early Halloween decorating. A slight chance of showers may return late Thursday night, but no major systems are expected into the weekend.
Clear mornings and cool nights will dominate the forecast, signaling that fall weather has fully settled in across northeast Wisconsin.
