Sparta Weather Forecast

    • 20
    • 39

    Mostly Cloudy

    • 30
    • 35

    Rain

    • 4
    • 38

    Snow Likely

    • 12
    • 23

    Slight Chance Snow

    • 5
    • 32

    Partly Sunny

    • 7
    • 23

    Mostly Cloudy

    • 19
    • 29

    Mostly Cloudy

Today 16 Dec Monroe

Partly sunny. Not as cool with Highs in the upper 30s. Southwest Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 16 Dec Monroe

Mostly cloudy. Not as cool with Lows around 20. West Winds 10 to 20 Mph with Gusts up to 35 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

    14.8 °F

  • Highest 9 December, 2025

    30.2 °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 °F
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