Lake Mendota Weather Forecast

    • 5
    • 24

    Snow Likely

    • -15
    • 15

    Partly Sunny

    • -16
    • -6

    Cold

    • -7
    • 1

    Cold

    • -5
    • 9

    Cold

    • 2
    • 13

    Partly Sunny

Today 21 Jan Dane

Mostly cloudy. Light snow likely late in the afternoon. Snow accumulation up to 1 inch. Highs in the lower 20s. West Winds up to 10 Mph shifting to the southwest in the afternoon. Chance of snow 70 percent.

Tonight 21 Jan Dane

Cloudy with light snow likely in the Evening, then mostly cloudy with slight chance of light snow late in the evening. Partly cloudy after midnight. Snow accumulation up to 1 inch. Total snow accumulation 2 to 5 Inches. Lows around 5. West Winds 10 to 15 Mph with Gusts to around 30 Mph. Chance of snow 70 percent.

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Lake Mendota Temperature Statistics

January Temperature

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

  • Lowest 18 January, 2026

    -0.9 °F

  • Average January

    26.1 °F

  • Highest 9 January, 2026

    55.9 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    39.9 °F

  • Average 2021–2026

    49.6 °F

  • Average High 2021–2026

    58.9 °F
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