Fort McCoy Barrens State Natural Area Weather Forecast

    • 54
    • 82

    Rain Showers Likely

    • 53
    • 79

    Mostly Sunny

    • 59
    • 82

    Rain Showers Likely

    • 57
    • 82

    Chance Thunderstorms

    • 53
    • 79

    Mostly Sunny

    • 55
    • 78

    Partly Sunny

Today 18 Aug Monroe

Partly sunny Early, then becoming mostly cloudy. A slight chance of Showers and Thunderstorms Early, then Showers likely with a chance of Thunderstorms this afternoon. Highs in the lower 80s. West Winds around 5 Mph. Chance of rain 60 percent.

Tonight 18 Aug Monroe

Mostly cloudy with a chance of Showers and Thunderstorms in the Evening, then partly cloudy after midnight. Lows in the mid 50s. West Winds around 5 Mph in the Evening, becoming light and variable. Chance of rain 50 percent.

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Fort McCoy Barrens State Natural Area Temperature Statistics

August Temperature

Sparta, Sparta / Fort McCoy Airport (2.5 miles)

  • Lowest 6 August, 2026

    48.6 °F

  • Average August

    71.1 °F

  • Highest 11 August, 2026

    86.5 °F

Climate (2021–2026)

Sparta, Sparta / Fort McCoy Airport (2.5 miles)

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  • Average Low 2021–2026

    35.1 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    58.3 °F
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