Rib Mountain State Park Weather Forecast

    • 12
    • 16

    Snow Likely

    • -5
    • 14

    Chance Snow

    • 2
    • 10

    Cold

    • 3
    • 14

    Partly Sunny

    • 9
    • 18

    Mostly Cloudy

    • 14
    • 25

    Mostly Cloudy

Today 30 Dec Marathon

Mostly cloudy. A chance of light snow in the Morning, then light snow likely in the afternoon. Snow accumulation up to 1 inch. Highs in the upper teens. West wind 10 to 15 Mph. Chance of snow 70 percent.

Tonight 30 Dec Marathon

Mostly cloudy. Lows around 10 above zero. Northwest wind 10 to 15 Mph.

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Rib Mountain State Park Temperature Statistics

December Temperature

Wausau Downtown Airport (3.1 miles)

  • Lowest 13 December, 2025

    -13 °F

  • Average December

    17.7 °F

  • Highest 16 December, 2025

    39 °F

Climate (2020–Present)

Wausau Downtown Airport (3.1 miles)

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  • Average Low 2020–2025

    37.5 °F

  • Average 2020–2025

    46.8 °F

  • Average High 2020–2025

    56 °F
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