Sparta/Fort McCoy Airport Weather Forecast

    • 60
    • 73

    Rain Showers

    • 59
    • 72

    Rain Showers

    • 42
    • 68

    Chance Rain Showers

    • 41
    • 66

    Mostly Sunny

    • 45
    • 66

    Partly Sunny

    • 38
    • 64

    Mostly Sunny

Today 29 Sep Monroe

Partly sunny in the Morning, then becoming cloudy. Patchy fog in the morning. Highs in the lower 70s. South Winds 5 to 10 Mph.

Tonight 29 Sep Monroe

Showers. Lows around 60. South Winds 5 to 10 Mph. Chance of rain 90 percent.

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Sparta/Fort McCoy Airport Temperature Statistics

September Temperature

Sparta, Sparta / Fort McCoy Airport (0 miles)

  • Lowest 14 September, 2026

    36.9 °F

  • Average September

    65 °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

    35.3 °F

  • Average 2021–2026

    47.8 °F

  • Average High 2021–2026

    58.4 °F
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