Lake Mendota Weather Forecast

    • 2
    • 18

    Increasing Clouds

    • 17
    • 23

    Mostly Cloudy

    • 28
    • 35

    Rain/Snow

    • 12
    • 32

    Chance Snow

    • 5
    • 23

    Chance Snow

    • -2
    • 13

    Mostly Cloudy

Today 7 Dec Dane

Partly sunny then becoming sunny in the late morning and early afternoon then becoming partly sunny. A 20 percent chance of light snow in the morning. Highs around 17. North Winds 5 to 10 Mph.

Tonight 7 Dec Dane

Snow. New snow accumulation of 1 to 3 Inches. Total snow accumulation 1 to 5 Inches. Lows around 14. Northeast Winds up to 10 Mph. Chance of snow near 100 percent.

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Lake Mendota Temperature Statistics

December Temperature

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

  • Lowest 4 December, 2025

    -2 °F

  • Average December

    16.5 °F

  • Highest 3 December, 2025

    30 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    40 °F

  • Average 2020–2025

    49.7 °F

  • Average High 2020–2025

    58.9 °F
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