Mark Island Weather Forecast

    • 43
    • 46

    Rain Likely

    • 29
    • 52

    Rain

    • 34
    • 40

    Chance Rain

    • 23
    • 44

    Chance Rain

    • 20
    • 27

    Partly Sunny

    • 28
    • 36

    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

Mostly clear. Lows in the lower 20s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mark Island Temperature Statistics

December Temperature

Wiscasset Airport (18.6 miles)

  • Lowest 9 December, 2025

    -2.9 °F

  • Average December

    24.2 °F

  • Highest 10 December, 2025

    41 °F

Climate (2020–Present)

Wiscasset Airport (18.6 miles)

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  • Average Low 2020–2025

    38.9 °F

  • Average 2020–2025

    48.5 °F

  • Average High 2020–2025

    58 °F
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