Sparta Weather Forecast

    • 51
    • 75

    Mostly Cloudy

    • 59
    • 73

    Rain Showers

    • 57
    • 70

    Rain Showers

    • 41
    • 67

    Slight Chance Rain Showers

    • 40
    • 64

    Mostly Sunny

    • 44
    • 66

    Partly Sunny

Today 28 Sep Monroe

Partly sunny. Highs in the mid 70s. Light Winds.

Tonight 28 Sep Monroe

Partly cloudy. Lows in the lower 50s. Southeast Winds around 5 Mph.

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Sparta Temperature Statistics

September Temperature

Sparta, Sparta / Fort McCoy Airport (3.7 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 (3.7 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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