Sparta Weather Forecast

    • 61
    • 82

    Partly Sunny

    • 64
    • 81

    Rain Showers

    • 51
    • 80

    Mostly Sunny

    • 51
    • 78

    Mostly Sunny

    • 57
    • 80

    Partly Sunny

    • 54
    • 80

    Chance Thunderstorms

Today 7 Sep Monroe

Patchy fog in the morning. Mostly sunny. Highs in the lower 80s. Southeast Winds 5 to 10 Mph.

Tonight 7 Sep Monroe

Partly cloudy. Patchy fog. Lows in the upper 50s. Southeast Winds around 5 Mph.

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Sparta Temperature Statistics

September Temperature

Sparta, Sparta / Fort McCoy Airport (3.7 miles)

  • Lowest 2 September, 2026

    65.3 °F

  • Average September

    76.7 °F

  • Highest 1 September, 2026

    91 °F

Climate (2021–2026)

Sparta, Sparta / Fort McCoy Airport (3.7 miles)

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  • Average Low 2021–2026

    35.2 °F

  • Average 2021–2026

    47.7 °F

  • Average High 2021–2026

    58.4 °F
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