Grant River Recreation Area Weather Forecast

    • 38
    • 63

    Becoming Sunny

    • 46
    • 64

    Chance Rain Showers

    • 49
    • 78

    Chance Rain Showers

    • 42
    • 66

    Mostly Sunny

    • 54
    • 73

    Chance Thunderstorms

    • 55
    • 77

    Chance Thunderstorms

    • 55
    • 79

    Chance Rain Showers

Today 10 May Grant

Partly sunny. Near steady temperature in the lower 60s. Northwest Winds 10 to 15 Mph.

Tonight 10 May Grant

Partly cloudy this Evening, then clearing. Areas of frost after midnight. Lows in the upper 30s. North Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grant River Recreation Area Temperature Statistics

May Temperature

Platteville Municipal Airport (13 miles)

  • Lowest 2 May, 2026

    32 °F

  • Average May

    51.4 °F

  • Highest 4 May, 2026

    80.8 °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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