Loon Mountain Weather Forecast

    • 41
    • 61

    Increasing Clouds

    • 47
    • 65

    Rain Showers Likely

    • 43
    • 59

    Rain Showers

    • 42
    • 58

    Rain Showers Likely

    • 37
    • 55

    Rain Showers

    • 34
    • 51

    Chance Rain Showers

Today 18 Oct Northern Grafton

Widespread frost this morning. Mostly sunny. Highs around 60. Light and variable Winds.

Tonight 18 Oct Northern Grafton

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 40s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Loon Mountain Temperature Statistics

October Temperature

Plymouth Municipal Airport (19.9 miles)

  • Lowest 10 October, 2025

    25.5 °F

  • Average October

    50.3 °F

  • Highest 6 October, 2025

    84.6 °F

Climate (2020–Present)

Plymouth Municipal Airport (19.9 miles)

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  • Average Low 2020–2025

    36.7 °F

  • Average 2020–2025

    46.8 °F

  • Average High 2020–2025

    57.2 °F
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