Sister Island Weather Forecast

    • 36
    • 52

    Breezy

    • 35
    • 49

    Mostly Sunny

    • 43
    • 55

    Rain Showers Likely

    • 40
    • 52

    Slight Chance Rain Showers

    • 41
    • 52

    Rain Showers Likely

    • 35
    • 49

    Chance Rain Showers

Today 1 Nov Coastal Cumberland

Partly sunny. Highs in the mid 50s. West Winds 15 to 20 Mph with Gusts up to 35 Mph.

Tonight 1 Nov Coastal Cumberland

Partly cloudy with a 20 percent chance of Showers. Lows in the lower 40s. West Winds 15 to 20 Mph with Gusts up to 40 Mph.

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Sister Island Temperature Statistics

November Temperature

Portland, Portland International Jetport (17.4 miles)

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  • Average November

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Climate (2020–Present)

Portland, Portland International Jetport (17.4 miles)

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  • Average Low 2020–2025

    40.5 °F

  • Average 2020–2025

    49 °F

  • Average High 2020–2025

    57.5 °F
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