Monhegan Island Harbor Weather Forecast

    • 62
    • 68

    Increasing Clouds

    • 63
    • 71

    Chance Rain Showers

    • 61
    • 71

    Chance Rain Showers

    • 60
    • 67

    Partly Sunny

    • 61
    • 67

    Partly Sunny

    • 61
    • 69

    Slight Chance Rain Showers

Today 26 Aug Lincoln

Mostly sunny. Highs in the lower 80s. Light and variable Winds.

Tonight 26 Aug Lincoln

Partly cloudy. Lows in the upper 50s. Light and variable Winds.

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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 16 August, 2026

    54 °F

  • Average August

    68.6 °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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