White Mountain National Forest Weather Forecast

    • 40
    • 48

    Rain

    • 35
    • 54

    Partly Sunny

    • 36
    • 55

    Partly Sunny

    • 36
    • 57

    Partly Sunny

    • 39
    • 57

    Mostly Cloudy

    • 42
    • 55

    Chance Rain Showers

Today 20 Sep Northern Grafton

A chance of rain Showers in the Morning, then rain in the afternoon. Highs in the mid 50s. Light and variable Winds. Chance of rain near 100 percent.

Tonight 20 Sep Northern Grafton

Cloudy. Rain likely in the evening. Patchy fog after midnight. Visibility one quarter mile or less at Times after midnight. Lows in the lower 40s. Light and variable Winds. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

White Mountain National Forest Temperature Statistics

September Temperature

Mount Washington (11.2 miles)

  • Lowest 11 September, 2026

    31.5 °F

  • Average September

    44.7 °F

  • Highest 10 September, 2026

    55.4 °F

Climate (2021–2026)

Mount Washington (11.2 miles)

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  • Average Low 2021–2026

    24.4 °F

  • Average 2021–2026

    29.8 °F

  • Average High 2021–2026

    35 °F
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