GREEN BAY, Wis. – A crisp, fair sky and a light southeast wind greet Wisconsin early this Tuesday, but the mild calm won’t last. The week begins with sun-splashed afternoons and chilly dawns near freezing, yet by late Thursday, trick-or-treat plans could meet a brisk, cloudy turn — the first real taste of November’s chill settling across the Great Lakes.
According to the National Weather Service in Green Bay, high pressure will dominate through midweek, keeping skies mostly clear and winds light. Wednesday remains pleasant, with highs in the mid-50s and a gentle east breeze along Highway 41 and I-43. Residents should take advantage of the stretch for yard cleanup or early holiday decorating before temperatures start their late-week drop.
By Thursday night, clouds creep back from the west as a weak disturbance approaches. Temperatures fall toward the mid-30s, and the air will feel sharply colder by early Friday. While widespread rain holds off until late Friday, spotty sprinkles or light drizzle could arrive along the Bay by afternoon.
For Halloween evening, Green Bay will turn breezy and cooler, with readings in the lower 40s and a few stray showers possible. Trick-or-treaters should plan light gloves and layers under costumes, especially north of De Pere and Ashwaubenon where winds may gust near 20 mph.
Saturday looks mostly cloudy and brisk with highs in the 40s — a clear sign that November is stepping in. To be fair, the sunshine returns briefly Sunday, but the chill is here to stay. After all, a colder November is waiting just ahead.
Five-Day Forecast for Green Bay, WI:
Tue: 56/41 – Sunny; breezy southeast gusts up to 20 mph.
Wed: 55/37 – Mostly sunny; calm and mild.
Thu: 53/37 – Mostly sunny early; clouds increase late.
Fri: 52/36 – Mostly cloudy; chance of light rain by evening.
Sat: 47/33 – Mostly cloudy; cooler with a light north wind.
