Grand Marsh Weather Forecast

    • 5
    • 42

    Rain

    • 13
    • 19

    Mostly Cloudy

    • 2
    • 32

    Partly Sunny

    • 6
    • 16

    Partly Sunny

    • 25
    • 32

    Mostly Cloudy

    • 19
    • 36

    Mostly Cloudy

Today 18 Dec Adams

Rain this Morning, then a chance of rain with a slight chance of snow this afternoon. Snow accumulation little or no. Highs in the lower 40s. Temperature falling to around 30 this afternoon. Southwest Winds 10 to 15 Mph, becoming west 10 to 20 Mph with Gusts up to 30 Mph this afternoon. Chance of precipitation 100 percent.

Tonight 18 Dec Adams

Mostly cloudy. A chance of snow in the evening. Snow accumulation little or no. Much Colder with Lows around 5 above. Northwest Winds 15 to 20 Mph with Gusts up to 35 Mph. Chance of snow 30 percent. Wind chill Values as low as 15 below after midnight.

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Grand Marsh Temperature Statistics

December Temperature

New Lisbon Mauston Airport (21.7 miles)

  • Lowest 14 December, 2025

    -9.6 °F

  • Average December

    15.2 °F

  • Highest 16 December, 2025

    42.1 °F

Climate (2020–Present)

New Lisbon Mauston Airport (21.7 miles)

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  • Average Low 2020–2025

    37.6 °F

  • Average 2020–2025

    47.9 °F

  • Average High 2020–2025

    57.6 °F
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