Monhegan Island Harbor Weather Forecast

    • 61
    • 70

    Slight Chance Rain Showers

    • 60
    • 72

    Mostly Sunny

    • 60
    • 70

    Mostly Sunny

    • 62
    • 69

    Chance Rain Showers

    • 60
    • 68

    Slight Chance Rain Showers

    • 62
    • 70

    Partly Sunny

    • 63
    • 70

    Partly Sunny

Today 13 Aug Lincoln

Showers likely with a chance of Thunderstorms. Some Thunderstorms may produce gusty Winds and small hail. Highs in the upper 70s. Light and variable Winds. Chance of rain 70 percent.

Tonight 13 Aug Lincoln

Partly cloudy with a chance of Showers and Thunderstorms in the Evening, then clear after midnight. Some Thunderstorms may produce gusty Winds and small hail in the evening. Lows in the mid 50s. Light and variable Winds. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Monhegan Island Harbor Temperature Statistics

August Temperature

Rockland, Knox County Regional Airport (23.6 miles)

  • Lowest 1 August, 2026

    55.9 °F

  • Average August

    70.8 °F

  • Highest 6 August, 2026

    86 °F

Climate (2021–2026)

Rockland, Knox County Regional Airport (23.6 miles)

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  • Average Low 2021–2026

    39.5 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    54.9 °F
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