Westbrook Weather Forecast

    • 50
    • 91

    Slight Chance Thunderstorms

    • 41
    • 68

    Partly Sunny

    • 45
    • 68

    Partly Sunny

    • 44
    • 64

    Mostly Cloudy

    • 43
    • 58

    Chance Rain Showers

    • 47
    • 62

    Chance Rain Showers

Today 20 May Coastal Cumberland

Partly sunny. A slight chance of Showers and Thunderstorms this afternoon. Warm with Highs in the upper 80s. West Winds 15 to 20 Mph with Gusts up to 35 Mph. Chance of rain 20 percent.

Tonight 20 May Coastal Cumberland

Partly cloudy. Less humid with Lows around 50. Northwest Winds 10 to 15 Mph. Gusts up to 30 Mph in the evening.

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Westbrook Temperature Statistics

May Temperature

Portland, Portland International Jetport (3.7 miles)

  • Lowest 8 May, 2026

    36.6 °F

  • Average May

    53.6 °F

  • Highest 17 May, 2026

    84.7 °F

Climate (2021–Present)

Portland, Portland International Jetport (3.7 miles)

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  • Average Low 2021–2026

    40.1 °F

  • Average 2021–2026

    48.7 °F

  • Average High 2021–2026

    57.2 °F
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