Summer temperatures · Wisconsin
How hot does Green Bay get in summer?
In a typical summer, June to August, Green Bay averages highs around 79°F and lows around 58°F.
About 6 days a year reach 90°F or hotter, and a day at 100°F comes along less than once a year. About 58 days a year get to 80°F or warmer. That makes it the 19th coolest summer of the 129 US cities we track.
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The hottest high in the forecast for the next 48 hours is about 43°F.
Green Bay averages about 6 days a year at 90°F or hotter, so summer here is a pleasant, mild pause between football seasons.
Live 48-hour forecast from OpenWeatherMap, refreshed about every half hour. Alerts from the National Weather Service.
Summer at a glance
| Average summer high | 79°F |
|---|---|
| Average summer low | 58°F |
| Days a year at 80°F or warmer | 58 |
| Days a year at 90°F or hotter | 6 |
| Days a year at 100°F or hotter | fewer than one |
| Average winter high, for comparison | 29°F |
Summer here is June to August. Counts are averages a year.
Cities with about the same summer
- Portland, Oregon: highs around 80°F, lows around 57°F
- Bismarck, North Dakota: highs around 82°F, lows around 56°F
- Concord, New Hampshire: highs around 81°F, lows around 57°F
More about the weather here
Source: NOAA U.S. Climate Normals, 1991 to 2020, station USW00014898.