Jewell Island Weather Forecast

    • 22
    • 38

    Breezy

    • 25
    • 31

    Breezy

    • 26
    • 34

    Mostly Cloudy

    • 20
    • 32

    Chance Snow

    • 20
    • 26

    Partly Sunny

    • 24
    • 30

    Partly Sunny

Today 11 Dec Coastal Cumberland

Mostly sunny. Highs in the mid 30s. Temperatures falling into the mid 20s this afternoon. West Winds 15 to 20 Mph with Gusts up to 40 Mph.

Tonight 11 Dec Coastal Cumberland

Partly cloudy. Lows around 15. West Winds 15 to 20 Mph. Gusts up to 40 Mph, decreasing to 30 Mph after midnight. Wind chill Values as low as 1 below.

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Jewell Island Temperature Statistics

December Temperature

Portland, Portland International Jetport (10.6 miles)

  • Lowest 5 December, 2025

    1.9 °F

  • Average December

    24.3 °F

  • Highest 1 December, 2025

    39 °F

Climate (2020–Present)

Portland, Portland International Jetport (10.6 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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