Grant River Recreation Area Weather Forecast

    • 27
    • 64

    Rain Showers

    • 23
    • 45

    Mostly Sunny

    • 38
    • 51

    Partly Sunny

    • 46
    • 65

    Partly Sunny

    • 55
    • 73

    Chance Thunderstorms

    • 47
    • 73

    Chance Rain Showers

    • 40
    • 60

    Rain Showers Likely

Today 26 Mar Grant

Showers likely. Cooler with Highs in the lower 60s. Temperature falling into the mid 50s late. North Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 70 percent.

Tonight 26 Mar Grant

Mostly cloudy with numerous rain Showers this Evening, then partly cloudy after midnight. Much Colder with Lows in the mid 20s. North Winds 10 to 20 Mph with Gusts up to 35 Mph. Chance of rain 70 percent.

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  • Temperature Real-Time

Grant River Recreation Area Temperature Statistics

March Temperature

Platteville Municipal Airport (13 miles)

  • Lowest 16 March, 2026

    12.7 °F

  • Average March

    40.2 °F

  • Highest 21 March, 2026

    81 °F

Climate (2021–Present)

Platteville Municipal Airport (13 miles)

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  • Average Low 2021–2026

    40.7 °F

  • Average 2021–2026

    49.8 °F

  • Average High 2021–2026

    58.7 °F
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