Sparta/Fort McCoy Airport Weather Forecast

    • 63
    • 82

    Chance Rain Showers

    • 65
    • 82

    Rain Showers

    • 51
    • 81

    Mostly Sunny

    • 52
    • 79

    Sunny

    • 59
    • 80

    Rain Showers Likely

    • 52
    • 78

    Partly Sunny

    • 52
    • 74

    Chance Rain Showers

Today 7 Sep Monroe

Mostly sunny. Highs in the lower 80s. South Winds 5 to 10 Mph.

Tonight 7 Sep Monroe

Mostly cloudy. Lows in the lower 60s. Southeast Winds 5 to 10 Mph.

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Sparta/Fort McCoy Airport Temperature Statistics

September Temperature

Sparta, Sparta / Fort McCoy Airport (0 miles)

  • Lowest 5 September, 2026

    63 °F

  • Average September

    76 °F

  • Highest 1 September, 2026

    91 °F

Climate (2021–2026)

Sparta, Sparta / Fort McCoy Airport (0 miles)

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  • Average Low 2021–2026

    35.2 °F

  • Average 2021–2026

    47.7 °F

  • Average High 2021–2026

    58.5 °F
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