Jewell Island Weather Forecast

    • 61
    • 63

    Rain Showers

    • 52
    • 66

    Chance Rain Showers

    • 56
    • 62

    Mostly Sunny

    • 59
    • 65

    Partly Sunny

    • 59
    • 64

    Chance Rain Showers

    • 56
    • 67

    Slight Chance Rain Showers

    • 56
    • 63

    Chance Rain Showers

Today 13 Sep Coastal Cumberland

Showers with isolated Thunderstorms. Patchy fog. Near steady temperature in the mid 60s. South Winds around 10 Mph with Gusts up to 20 Mph. Chance of rain near 100 percent.

Tonight 13 Sep Coastal Cumberland

Cloudy. A chance of Showers, mainly in the evening. Areas of fog. Lows around 60. Light and variable Winds. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Jewell Island Temperature Statistics

September Temperature

Portland, Portland International Jetport (10.6 miles)

  • Lowest 7 September, 2026

    50.6 °F

  • Average September

    66.3 °F

  • Highest 10 September, 2026

    85.6 °F

Climate (2021–2026)

Portland, Portland International Jetport (10.6 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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