Lake Mendota Weather Forecast

    • 5
    • 36

    Snow Showers

    • 9
    • 16

    Chance Snow

    • 13
    • 21

    Partly Sunny

    • 9
    • 25

    Partly Sunny

    • 22
    • 26

    Chance Snow

    • 26
    • 37

    Mostly Cloudy

    • 23
    • 38

    Mostly Cloudy

Today 31 Dec Dane

Light snow. Little new snow accumulation. Northwest Winds 10 to 15 Mph with Gusts to around 30 Mph. Chance of snow near 100 percent.

Tonight 31 Dec Dane

Colder. Mostly cloudy in the evening then becoming partly cloudy. A 20 percent chance of light snow in the evening. Lows around 5. Northwest Winds 5 to 15 Mph. Gusts up to 30 Mph through around midnight.

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Lake Mendota Temperature Statistics

December Temperature

Madison, Dane County Regional-Truax Field (4.3 miles)

  • Lowest 14 December, 2025

    -7.1 °F

  • Average December

    22.6 °F

  • Highest 23 December, 2025

    45 °F

Climate (2021–Present)

Madison, Dane County Regional-Truax Field (4.3 miles)

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  • Average Low 2021–2025

    39.9 °F

  • Average 2021–2025

    49.6 °F

  • Average High 2021–2025

    58.8 °F
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