West Allis Weather Forecast

    • 11
    • 48

    Rain

    • 18
    • 20

    Mostly Cloudy

    • 9
    • 39

    Slight Chance Snow Showers

    • 12
    • 20

    Partly Sunny

    • 30
    • 36

    Mostly Cloudy

    • 27
    • 41

    Mostly Cloudy

Today 18 Dec Milwaukee

Rain Showers early in the Afternoon, then chance of light rain Showers late in the afternoon. Areas of fog through the day. Highs in the upper 40s. Southwest Winds 10 to 15 Mph with Gusts to around 30 Mph. Chance of Showers near 100 percent.

Tonight 18 Dec Milwaukee

Much Colder. Breezy. Cloudy with a 50 percent chance of snow Showers. Lows around 11. West Winds 15 to 25 Mph with Gusts to around 40 Mph.

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West Allis Temperature Statistics

December Temperature

Milwaukee-Timmerman (6.2 miles)

  • Lowest 14 December, 2025

    -5.8 °F

  • Average December

    18.7 °F

  • Highest 16 December, 2025

    37.4 °F

Climate (2020–Present)

Milwaukee-Timmerman (6.2 miles)

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  • Average Low 2020–2025

    40 °F

  • Average 2020–2025

    47 °F

  • Average High 2020–2025

    56.9 °F
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