Grass Lake Weather Forecast

    • 62
    • 83

    Decreasing Clouds

    • 62
    • 85

    Mostly Sunny

    • 64
    • 86

    Mostly Sunny

    • 66
    • 88

    Sunny

    • 69
    • 90

    Mostly Sunny

    • 67
    • 89

    Mostly Sunny

    • 66
    • 87

    Mostly Sunny

Today 10 Jul Dane

Partly sunny. Near steady temperature in the lower 80s. East Winds around 5 Mph.

Tonight 10 Jul Dane

Mostly cloudy in the evening then becoming partly cloudy. Lows in the lower 60s. East Winds up to 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grass Lake Temperature Statistics

July Temperature

Madison, Dane County Regional-Truax Field (17.4 miles)

  • Lowest 7 July, 2026

    58.6 °F

  • Average July

    76.3 °F

  • Highest 1 July, 2026

    91.7 °F

Climate (2021–2026)

Madison, Dane County Regional-Truax Field (17.4 miles)

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  • Average Low 2021–2026

    39.9 °F

  • Average 2021–2026

    49.7 °F

  • Average High 2021–2026

    59.1 °F
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