Black Mountain State Forest Weather Forecast

    • 39
    • 57

    Rain Showers Likely

    • 37
    • 43

    Rain Showers Likely

    • 41
    • 47

    Mostly Cloudy

    • 41
    • 50

    Rain Showers Likely

    • 40
    • 45

    Rain Showers Likely

    • 42
    • 47

    Rain Showers Likely

    • 41
    • 48

    Chance Rain Showers

Today 18 May Northern Grafton

Mostly cloudy. A chance of Showers late this Morning, then Showers likely with a slight chance of Thunderstorms this afternoon. Highs in the lower 60s. Light and variable Winds. Chance of rain 70 percent.

Tonight 18 May Northern Grafton

Cloudy. Showers Likely, mainly this evening. Lows in the lower 40s. Northwest Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Black Mountain State Forest Temperature Statistics

May Temperature

Plymouth Municipal Airport (22.4 miles)

  • Lowest 1 May, 2025

    33.6 °F

  • Average May

    56.2 °F

  • Highest 16 May, 2025

    82 °F

Climate (2020–Present)

Plymouth Municipal Airport (22.4 miles)

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  • Average Low 2020–2025

    36.8 °F

  • Average 2020–2025

    46.9 °F

  • Average High 2020–2025

    57.3 °F
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