Loon Mountain Weather Forecast

    • -4
    • 29

    Chance Snow Showers

    • 7
    • 18

    Partly Sunny

    • 18
    • 29

    Snow Showers

    • 3
    • 31

    Chance Snow

    • 0
    • 15

    Partly Sunny

    • 10
    • 20

    Chance Snow

Today 4 Dec Northern Grafton

Mostly cloudy with a 50 percent chance of snow Showers. Highs in the upper 20s. Temperatures falling to around 15 this afternoon. Southwest Winds around 10 Mph with Gusts up to 25 Mph, becoming northwest with Gusts up to 40 Mph this afternoon. Wind chill Values as low as 5 below this afternoon.

Tonight 4 Dec Northern Grafton

Partly cloudy in the Evening, then clearing. Cooler with Lows around 3 below. Northwest Winds 10 to 15 Mph with Gusts up to 45 Mph. Wind chill Values as low as 15 below.

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Loon Mountain Temperature Statistics

December Temperature

Plymouth Municipal Airport (19.9 miles)

  • Lowest 1 December, 2025

    13.6 °F

  • Average December

    28.9 °F

  • Highest 1 December, 2025

    36.5 °F

Climate (2020–Present)

Plymouth Municipal Airport (19.9 miles)

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  • Average Low 2020–2025

    36.7 °F

  • Average 2020–2025

    46.7 °F

  • Average High 2020–2025

    57.2 °F
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