Monhegan Island Harbor Weather Forecast

    • 36
    • 41

    Windy

    • 23
    • 42

    Breezy

    • 24
    • 29

    Blustery

    • 29
    • 38

    Snow Likely

    • 28
    • 35

    Breezy

    • 36
    • 41

    Rain/Snow Likely

Today 20 Dec Lincoln

Mostly sunny. Highs in the upper 30s. West Winds 10 to 15 Mph. Gusts up to 30 Mph in the morning.

Tonight 20 Dec Lincoln

Partly cloudy. Lows in the lower 20s. West Winds 10 to 15 Mph with Gusts up to 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Monhegan Island Harbor Temperature Statistics

December Temperature

Rockland, Knox County Regional Airport (23.6 miles)

  • Lowest 9 December, 2025

    -2 °F

  • Average December

    25.8 °F

  • Highest 10 December, 2025

    45 °F

Climate (2020–Present)

Rockland, Knox County Regional Airport (23.6 miles)

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  • Average Low 2020–2025

    39.9 °F

  • Average 2020–2025

    47.9 °F

  • Average High 2020–2025

    55.2 °F
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