Black Mountain State Forest Weather Forecast

    • 43
    • 60

    Chance Rain Showers

    • 42
    • 60

    Mostly Sunny

    • 44
    • 65

    Mostly Sunny

    • 47
    • 67

    Partly Sunny

    • 41
    • 65

    Mostly Sunny

    • 41
    • 60

    Mostly Sunny

Today 7 Sep Northern Grafton

Cloudy. A chance of Showers this morning. Patchy fog this morning. Highs in the mid 60s. Light and variable Winds. Chance of rain 50 percent.

Tonight 7 Sep Northern Grafton

Partly cloudy in the Evening, then clearing. Patchy fog after midnight. Lows in the lower 40s. Light and variable Winds.

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  • Temperature Real-Time

Black Mountain State Forest Temperature Statistics

September Temperature

Plymouth Municipal Airport (22.4 miles)

  • Lowest 1 September, 2025

    41 °F

  • Average September

    62.9 °F

  • Highest 2 September, 2025

    81.9 °F

Climate (2020–Present)

Plymouth Municipal Airport (22.4 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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