Sparta Weather Forecast

    • -1
    • 36

    Chance Snow

    • 3
    • 15

    Snow Likely

    • 4
    • 19

    Partly Sunny

    • 2
    • 22

    Partly Sunny

    • 19
    • 26

    Mostly Cloudy

    • 21
    • 37

    Mostly Cloudy

    • 18
    • 35

    Mostly Cloudy

Today 31 Dec Monroe

Snow. Snow accumulation little or no. Highs in the mid 30s. Temperature falling to around 20 late. Northwest Winds 10 to 15 Mph. Chance of snow 100 percent.

Tonight 31 Dec Monroe

Partly cloudy. Much Colder with Lows around 1 below. Northwest Winds 5 to 10 Mph.

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  • Temperature Real-Time

Sparta Temperature Statistics

December Temperature

Sparta, Sparta / Fort McCoy Airport (3.7 miles)

  • Lowest 4 December, 2025

    -12.3 °F

  • Average December

    21.3 °F

  • Highest 23 December, 2025

    43.9 °F

Climate (2020–Present)

Sparta, Sparta / Fort McCoy Airport (3.7 miles)

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  • Average Low 2020–2025

    34.7 °F

  • Average 2020–2025

    47.4 °F

  • Average High 2020–2025

    58.1 °F
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