Grant River Recreation Area Weather Forecast

    • 63
    • 80

    Mostly Sunny

    • 62
    • 79

    Rain Showers Likely

    • 59
    • 77

    Partly Sunny

    • 59
    • 77

    Mostly Sunny

    • 62
    • 78

    Partly Sunny

    • 60
    • 78

    Mostly Sunny

Today 17 Aug Grant

Mostly sunny. Highs around 80. Northwest Winds 5 to 10 Mph.

Tonight 17 Aug Grant

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 60s. Southwest Winds around 5 Mph.

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Grant River Recreation Area Temperature Statistics

August Temperature

Platteville Municipal Airport (13 miles)

  • Lowest 3 August, 2026

    59.9 °F

  • Average August

    73.8 °F

  • Highest 10 August, 2026

    84.2 °F

Climate (2021–2026)

Platteville Municipal Airport (13 miles)

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  • Average Low 2021–2026

    40.8 °F

  • Average 2021–2026

    49.9 °F

  • Average High 2021–2026

    58.8 °F
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