Plymouth Weather Forecast

    • 45
    • 71

    Partly Sunny

    • 52
    • 79

    Partly Sunny

    • 47
    • 76

    Partly Sunny

    • 57
    • 73

    Chance Rain Showers

    • 48
    • 79

    Chance Rain Showers

Today 6 Sep Southern Penobscot

Partly sunny. Isolated Showers this afternoon. Highs in the upper 60s. North Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

Tonight 6 Sep Southern Penobscot

Partly cloudy in the Evening, then clearing. Lows in the mid 40s. Northwest Winds 5 to 10 Mph.

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Plymouth Temperature Statistics

September Temperature

Bangor, Bangor International Airport (19.3 miles)

  • Lowest 1 September, 2026

    47.6 °F

  • Average September

    64.3 °F

  • Highest 1 September, 2026

    80.7 °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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