Cannon Mountain Ski Area Weather Forecast

    • 55
    • 71

    Rain Showers

    • 61
    • 73

    Chance Rain Showers

    • 51
    • 73

    Rain Showers

    • 46
    • 66

    Chance Rain Showers

    • 41
    • 62

    Mostly Sunny

    • 42
    • 63

    Mostly Sunny

    • 47
    • 68

    Partly Sunny

Today 4 Sep Northern Grafton

Partly sunny. Highs in the upper 70s. South Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 4 Sep Northern Grafton

Partly cloudy this Evening, then becoming cloudy. Isolated Thunderstorms. A chance of Showers this Evening, then Showers after midnight. Areas of fog after midnight. Visibility one quarter mile or less at Times after midnight. Lows in the upper 50s. South Winds 10 to 15 Mph this Evening, becoming light and variable. Gusts up to 30 Mph. Chance of rain 90 percent.

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Cannon Mountain Ski Area Temperature Statistics

September Temperature

Whitefield - Mount Washington Regional Airport (14.9 miles)

  • Lowest 1 September, 2025

    39.9 °F

  • Average September

    61 °F

  • Highest 1 September, 2025

    80.1 °F

Climate (2020–Present)

Whitefield - Mount Washington Regional Airport (14.9 miles)

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  • Average Low 2020–2025

    32.7 °F

  • Average 2020–2025

    44.3 °F

  • Average High 2020–2025

    55.6 °F
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