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Get the Milwaukee WI weather forecast without ads, cookies, or tracking. Open-Meteo data, 10-day forecast, hourly conditions, and radar — all free. click here to hide this
July is the hottest month in Milwaukee WI, with an average high of 81°F / 27°C; January is the coldest (30°F / -1°C). June is the wettest month, averaging 4.4 in / 111 mm of precipitation.
| Month | High °F / °C | Low °F / °C | Precip in / mm | Wet days |
|---|---|---|---|---|
| Jan | 30 / -1 | 17 / -8 | 1.8 / 45 | 8 |
| Feb | 33 / 1 | 20 / -7 | 1.7 / 43 | 6 |
| Mar | 43 / 6 | 28 / -2 | 2.2 / 56 | 8 |
| Apr | 54 / 12 | 37 / 3 | 3.9 / 98 | 9 |
| May | 66 / 19 | 47 / 9 | 3.5 / 90 | 9 |
| Jun | 76 / 24 | 58 / 14 | 4.4 / 111 | 9 |
| Jul | 81 / 27 | 64 / 18 | 3.4 / 86 | 7 |
| Aug | 80 / 26 | 64 / 18 | 3.7 / 93 | 8 |
| Sep | 73 / 23 | 56 / 13 | 3.1 / 80 | 7 |
| Oct | 60 / 16 | 44 / 7 | 2.8 / 70 | 7 |
| Nov | 47 / 8 | 33 / 0 | 2.2 / 57 | 7 |
| Dec | 35 / 2 | 22 / -5 | 1.9 / 48 | 7 |
Extremes since 1938: highest 103°F / 39°C (August 1, 1988), lowest -26°F / -32°C (January 17, 1982).
Daylight lasts about 15.2 hours in June and 8.8 hours in December.
Data: Meteostat — Gen Mitchell International Airport, 1991–2020 averages.
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