Grundy Forest State Natural Area Weather Forecast

    • 63
    • 74

    Rain Showers

    • 63
    • 75

    Rain Showers

    • 63
    • 70

    Rain Showers

    • 61
    • 77

    Rain Showers Likely

    • 60
    • 75

    Chance Rain Showers

    • 57
    • 73

    Chance Rain Showers

Today 25 May Grundy

Partly sunny this Morning, then mostly cloudy with Showers with a chance of Thunderstorms this afternoon. Highs in the mid 70s. Southeast Winds around 5 Mph, becoming southwest around 5 Mph this afternoon. Chance of rain 80 percent.

Tonight 25 May Grundy

Showers likely. A chance of Thunderstorms in the Evening, then Thunderstorms likely after midnight. Lows in the lower 60s. West Winds around 5 Mph, becoming east after midnight. Chance of rain 70 percent.

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Grundy Forest State Natural Area Temperature Statistics

May Temperature

Winchester Municipal Airport (18 miles)

  • Lowest 6 May, 2025

    46.4 °F

  • Average May

    67.5 °F

  • Highest 15 May, 2025

    84.2 °F

Climate (2020–Present)

Winchester Municipal Airport (18 miles)

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  • Average Low 2020–2025

    50.4 °F

  • Average 2020–2025

    60.8 °F

  • Average High 2020–2025

    71 °F
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