Plymouth Weather Forecast

    • 57
    • 64

    Rain Showers

    • 42
    • 70

    Chance Rain Showers

    • 45
    • 71

    Mostly Sunny

    • 49
    • 75

    Partly Sunny

    • 49
    • 72

    Chance Rain Showers

    • 44
    • 72

    Slight Chance Rain Showers

Today 13 Sep Southern Penobscot

Cloudy with scattered Showers. Highs in the mid 60s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

Tonight 13 Sep Southern Penobscot

Mostly cloudy. Lows in the lower 50s. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Plymouth Temperature Statistics

September Temperature

Bangor, Bangor International Airport (19.3 miles)

  • Lowest 9 September, 2026

    40.6 °F

  • Average September

    63.1 °F

  • Highest 10 September, 2026

    82.7 °F

Climate (2021–2026)

Bangor, Bangor International Airport (19.3 miles)

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  • Average Low 2021–2026

    37.2 °F

  • Average 2021–2026

    47.2 °F

  • Average High 2021–2026

    56.9 °F
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