Plymouth Weather Forecast

    • 62
    • 86

    Thunderstorms

    • 60
    • 84

    Partly Sunny

    • 59
    • 83

    Partly Sunny

    • 57
    • 81

    Partly Sunny

    • 54
    • 80

    Chance Thunderstorms

    • 53
    • 77

    Slight Chance Rain Showers

Today 9 Aug Southern Penobscot

Partly sunny. Patchy fog this morning. Scattered Showers with isolated Thunderstorms this afternoon. Thunderstorms may produce gusty Winds and heavy rainfall this afternoon. Highs in the mid 80s. West Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 9 Aug Southern Penobscot

Clear. Lows in the lower 60s. West Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Plymouth Temperature Statistics

August Temperature

Bangor, Bangor International Airport (19.3 miles)

  • Lowest 1 August, 2026

    56.6 °F
  • Average August

    74.2 °F
  • Highest 6 August, 2026

    92.6 °F

Climate (2021–2026)

Bangor, Bangor International Airport (19.3 miles)

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  • Average Low 2021–2026

    37.3 °F
  • Average 2021–2026

    47.2 °F
  • Average High 2021–2026

    56.9 °F
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