Lake Mendota Weather Forecast

    • 41
    • 75

    Increasing Clouds

    • 27
    • 44

    Mostly Cloudy

    • 32
    • 47

    Partly Sunny

    • 37
    • 55

    Mostly Cloudy

    • 43
    • 57

    Mostly Cloudy

    • 28
    • 57

    Slight Chance Rain

    • 27
    • 45

    Partly Sunny

Today 21 Mar Dane

Mostly sunny. Southwest Winds 10 to 15 Mph with Gusts to around 30 Mph.

Tonight 21 Mar Dane

Partly cloudy through around midnight then becoming mostly cloudy. Lows in the lower 40s. West Winds up to 10 Mph shifting to the northeast after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Mendota Temperature Statistics

March Temperature

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

  • Lowest 1 March, 2026

    3.7 °F

  • Average March

    35.8 °F

  • Highest 9 March, 2026

    70.6 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    40 °F

  • Average 2021–2026

    49.7 °F

  • Average High 2021–2026

    59 °F
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