Cousins Island Weather Forecast

    • 59
    • 68

    Chance Rain

    • 61
    • 66

    Rain Showers

    • 61
    • 69

    Rain Showers

    • 58
    • 74

    Partly Sunny

    • 55
    • 70

    Partly Sunny

    • 55
    • 69

    Mostly Sunny

Today 1 Sep Coastal Cumberland

Mostly cloudy. A slight chance of Showers this Morning, then a chance of Showers this afternoon. Highs in the lower 70s. Light and variable Winds, becoming southeast around 10 Mph this afternoon. Chance of rain 50 percent.

Tonight 1 Sep Coastal Cumberland

Mostly cloudy with a 20 percent chance of Showers. Lows in the mid 50s. Light and variable Winds.

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Cousins Island Temperature Statistics

September Temperature

Portland, Portland International Jetport (11.2 miles)

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  • Average September

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Climate (2021–2026)

Portland, Portland International Jetport (11.2 miles)

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  • Average Low 2021–2026

    40 °F

  • Average 2021–2026

    48.7 °F

  • Average High 2021–2026

    57.3 °F
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