Bates Island Weather Forecast

    • 59
    • 76

    Chance Rain Showers

    • 56
    • 67

    Sunny

    • 60
    • 65

    Partly Sunny

    • 61
    • 66

    Slight Chance Rain Showers

    • 54
    • 67

    Partly Sunny

    • 60
    • 64

    Breezy

Today 10 Sep Coastal Cumberland

Mostly sunny. Highs in the mid 80s. West Winds 15 to 20 Mph with Gusts up to 40 Mph.

Tonight 10 Sep Coastal Cumberland

Partly cloudy. Lows in the mid 50s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph in the Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Bates Island Temperature Statistics

September Temperature

Portland, Portland International Jetport (11.8 miles)

  • Lowest 7 September, 2026

    50.6 °F

  • Average September

    65.9 °F

  • Highest 7 September, 2026

    82.7 °F

Climate (2021–2026)

Portland, Portland International Jetport (11.8 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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