Grant River Recreation Area Weather Forecast

    • 54
    • 79

    Rain Showers

    • 43
    • 65

    Becoming Sunny

    • 46
    • 68

    Partly Sunny

    • 52
    • 69

    Rain Showers

    • 47
    • 67

    Rain Showers

    • 42
    • 59

    Partly Sunny

    • 40
    • 59

    Slight Chance Rain Showers

Today 23 Apr Grant

Mostly sunny with a slight chance of Showers and Thunderstorms. Near steady temperature in the upper 70s. South Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 20 percent.

Tonight 23 Apr Grant

Showers with a chance of Thunderstorms this Evening, then Showers with a slight chance of Thunderstorms after midnight. Lows in the lower 50s. South Winds 10 to 15 Mph, becoming southwest after midnight. Gusts up to 30 Mph. Chance of rain 80 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grant River Recreation Area Temperature Statistics

April Temperature

Platteville Municipal Airport (13 miles)

  • Lowest 7 April, 2026

    23.5 °F

  • Average April

    48.4 °F

  • Highest 17 April, 2026

    78.1 °F

Climate (2021–Present)

Platteville Municipal Airport (13 miles)

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  • Average Low 2021–2026

    40.7 °F

  • Average 2021–2026

    49.9 °F

  • Average High 2021–2026

    58.8 °F
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