Current Weather and Forecast in Green Bay, WI
Wisconsin, United States 🇺🇸
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Explore Green Bay's typical temperatures and climate below - Live data returns shortly.
About the weather in Green Bay
Green Bay has a humid continental climate. July is the warmest month, with average highs of 82°, and January the coldest, when nights fall to around 14°. Over a whole year it rains on roughly 117 days.
Green Bay climate guide: monthly averages, seasons and the best time to visit
Common questions
What is the rainiest month in Green Bay?
July, at 3.8 inches (97 mm) over about 11 days. February is the driest month, at 1.4 inches (34 mm).
Does it snow in Green Bay?
Yes - about 23 days a year carry measurable snowfall, concentrated November through April.
What is the hottest month in Green Bay?
July, averaging 82°F (28°C) by day and 64°F (18°C) overnight. The hottest single day in our 2015-2024 record for this location reached 99°F (37°C).
How hot does Green Bay get in summer?
July averages 82°F (28°C). Hot afternoons happen but extremes are not the norm.
What is the coldest month in Green Bay?
January, with highs of 27°F (-3°C) and lows near 14°F (-10°C). The coldest day in the 2015-2024 record fell to -24°F (-31°C).
What should I wear in Green Bay?
It depends on the month: July runs to 82°F (28°C) while January holds at 27°F (-3°C). The full month-by-month breakdown is in the packing notes above.
What is the best month to go to Green Bay?
May to September is the sweet spot for Green Bay - these are the warmest and brightest weeks of the year. Expect 76°F (24°C) in the afternoon and around 11 days of rain in a typical month of it. For the same question asked the other way round, see where else is warm in May.