Sparta/Fort McCoy Airport Weather Forecast

    • 53
    • 76

    Rain Showers Likely

    • 58
    • 70

    Rain Showers

    • 53
    • 72

    Chance Rain Showers

    • 49
    • 66

    Chance Rain Showers

    • 48
    • 64

    Chance Rain Showers

    • 49
    • 66

    Slight Chance Rain Showers

Today 17 Sep Monroe

Patchy fog in the morning. Mostly cloudy with a chance of Showers in the Morning, then partly sunny in the afternoon. Highs in the mid 70s. East Winds around 5 Mph. Chance of rain 50 percent.

Tonight 17 Sep Monroe

Partly cloudy. Lows in the lower 50s. Light Winds.

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  • Temperature Real-Time

Sparta/Fort McCoy Airport Temperature Statistics

September Temperature

Sparta, Sparta / Fort McCoy Airport (0 miles)

  • Lowest 14 September, 2026

    36.9 °F

  • Average September

    69.5 °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

    58.5 °F
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