Lake Mendota Weather Forecast

    • 65
    • 80

    Decreasing Clouds

    • 62
    • 82

    Mostly Sunny

    • 58
    • 81

    Mostly Sunny

    • 61
    • 81

    Partly Sunny

    • 65
    • 80

    Chance Rain Showers

    • 68
    • 83

    Chance Rain Showers

Today 25 Aug Dane

Mostly sunny. Patchy fog in the morning. Highs around 80. Southwest Winds up to 10 Mph.

Tonight 25 Aug Dane

Partly cloudy. A 50 percent chance of light Showers and Thunderstorms after midnight. Lows in the mid 60s. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

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Lake Mendota Temperature Statistics

August Temperature

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

  • Lowest 20 August, 2026

    53.7 °F

  • Average August

    71.6 °F

  • Highest 10 August, 2026

    85.6 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    39.9 °F

  • Average 2021–2026

    49.8 °F

  • Average High 2021–2026

    59.1 °F
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