Sparta Weather Forecast

    • 57
    • 80

    Rain Showers

    • 51
    • 79

    Mostly Cloudy

    • 51
    • 84

    Mostly Sunny

    • 58
    • 86

    Partly Sunny

    • 62
    • 87

    Chance Thunderstorms

    • 62
    • 86

    Rain Showers Likely

Today 31 May Monroe

Partly sunny late this Morning, then becoming mostly cloudy. Highs in the upper 70s. Southeast Winds 5 to 10 Mph.

Tonight 31 May Monroe

Mostly cloudy. A slight chance of Showers and Thunderstorms after midnight. Lows in the upper 50s. Light Winds. Chance of rain 20 percent.

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Sparta Temperature Statistics

May Temperature

Sparta, Sparta / Fort McCoy Airport (3.7 miles)

  • Lowest 6 May, 2026

    25.5 °F

  • Average May

    57.6 °F

  • Highest 26 May, 2026

    89.8 °F

Climate (2021–Present)

Sparta, Sparta / Fort McCoy Airport (3.7 miles)

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  • Average Low 2021–2026

    34.9 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    58.3 °F
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