Westbrook Weather Forecast

    • 14
    • 27

    Chance Snow Showers

    • 25
    • 41

    Rain

    • 14
    • 37

    Partly Sunny

    • 14
    • 31

    Partly Sunny

    • 12
    • 33

    Partly Sunny

    • 8
    • 28

    Partly Sunny

Today 9 Dec Coastal Cumberland

Mostly sunny. Highs in the upper 20s. Light and variable Winds.

Tonight 9 Dec Coastal Cumberland

Clear, cooler with Lows 5 below to 1 above zero. Light and variable Winds.

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Westbrook Temperature Statistics

December Temperature

Portland, Portland International Jetport (3.7 miles)

  • Lowest 5 December, 2025

    1.9 °F

  • Average December

    24.8 °F

  • Highest 1 December, 2025

    39 °F

Climate (2020–Present)

Portland, Portland International Jetport (3.7 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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