Little Mark Island Weather Forecast

    • 42
    • 46

    Rain

    • 28
    • 52

    Rain

    • 34
    • 40

    Chance Rain/Snow

    • 22
    • 44

    Slight Chance Rain

    • 20
    • 27

    Blustery

    • 28
    • 35

    Chance Rain/Snow

Today 18 Dec Coastal Cumberland

Partly sunny. Highs in the mid 40s. Light and variable Winds, becoming south around 10 Mph with Gusts up to 25 Mph in the afternoon.

Tonight 18 Dec Coastal Cumberland

Partly cloudy with a slight chance of rain in the Evening, then cloudy with rain likely after midnight. Lows in the mid 30s. Temperatures rising into the mid 40s after midnight. South Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain 70 percent.

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Little Mark Island Temperature Statistics

December Temperature

Portland, Portland International Jetport (14.3 miles)

  • Lowest 9 December, 2025

    -0.9 °F

  • Average December

    23.9 °F

  • Highest 1 December, 2025

    39 °F

Climate (2020–Present)

Portland, Portland International Jetport (14.3 miles)

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  • Average Low 2020–2025

    40.4 °F

  • Average 2020–2025

    48.9 °F

  • Average High 2020–2025

    57.3 °F
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