Allouez, Green Bay Weather
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Climate of Allouez: monthly averages
Based on 25 years of satellite and reanalysis data (2001-2025), July is usually the hottest month in Allouez, with average daytime highs around 27°C. January is the coolest, when nights typically fall to about -12°C and frost is possible on the coldest nights. That is a wide yearly range of roughly 39°C, so the seasons feel very different from each other.
The area receives about 880 mm of rain in a typical year. Most of it falls from May to June, and June is the wettest month at roughly 113 mm.
For outdoor plans and travel, July to September usually offer the most comfortable weather in Allouez, with mild days and relatively little rain.
| Month | Avg high | Avg low | Rainfall | Humidity |
|---|---|---|---|---|
| Jan | -4° | -12° | 34 mm | 90% |
| Feb | -3° | -11° | 35 mm | 88% |
| Mar | 4° | -5° | 54 mm | 81% |
| Apr | 11° | 0° | 86 mm | 77% |
| May | 17° | 7° | 102 mm | 77% |
| Jun | 23° | 13° | 113 mm | 78% |
| Jul | 27° | 17° | 89 mm | 75% |
| Aug | 26° | 16° | 89 mm | 74% |
| Sep | 22° | 12° | 85 mm | 76% |
| Oct | 14° | 5° | 87 mm | 79% |
| Nov | 6° | -1° | 53 mm | 83% |
| Dec | -1° | -8° | 51 mm | 89% |
Source: NASA POWER (MERRA-2 reanalysis), averaged over the roughly 50 km grid area around Allouez. Values describe typical conditions, not a forecast.
About Allouez weather
Allouez sits within Wisconsin's humid continental climate, with cold winters shaped by its Great Lakes location, about 165 km north of Milwaukee. Conditions turn hot with warm summers (June–August) with highs in the high 20s°C. By December, expect cold, snowy winters (December–February) with lake-effect snow near Lake Michigan. This page shows live, auto-refreshing weather for Allouez: current conditions, an hourly breakdown, a 16-day outlook, a date-lookup tool for any past or future date, and real-time air quality, sourced from Open-Meteo. Local timezone: America/Chicago.
Frequently asked questions
Allouez is about 165 km north of Milwaukee, in Wisconsin.
Allouez sees cold, snowy winters (December–February) with lake-effect snow near Lake Michigan.
The live current conditions, hourly forecast and 16-day outlook above are pulled in real time for Allouez's exact coordinates. No fixed schedule, the page updates whenever you load it.
July is usually the hottest month in Allouez, with average daytime highs of about 27°C and nights around 17°C.
The coldest nights come in January, when the average low is about -12°C and daytime highs reach around -4°C. Frost is possible on clear, calm nights.
Allouez receives about 880 mm of rain in a typical year. June is the wettest month at roughly 113 mm, and the main rainy period is May to June.
July to September usually offer the most comfortable weather in Allouez, with mild daytime temperatures and little rain.
In November Allouez typically sees daytime highs near 6°C and lows near -1°C, with about 53 mm of rain over the month and average humidity around 83%. Check the live forecast above for this week's actual conditions.
Up to 16 days ahead using the extended forecast and date picker above; further-out or historical dates use the same date lookup tool.
Live temperature for Allouez is shown at the top of this page and refreshes automatically — see the hourly breakdown below for how it changes through the day.
Allouez's day-to-day weather follows the broader pattern of Wisconsin described above. See the hourly weather forecast or the air quality index for more detail.