Inner Sand Island Weather Forecast

    • 52
    • 58

    Rain Showers

    • 52
    • 59

    Partly Sunny

    • 56
    • 60

    Partly Sunny

    • 53
    • 63

    Slight Chance Rain Showers

    • 48
    • 60

    Partly Sunny

    • 49
    • 57

    Chance Rain Showers

Today 29 Sep Coastal Washington

Widespread Showers. Highs in the lower 60s. Northeast Winds around 5 Mph with Gusts up to 15 Mph. Chance of rain 80 percent.

Tonight 29 Sep Coastal Washington

Mostly cloudy. A chance of Showers in the evening. Lows in the upper 40s. North Winds around 5 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Inner Sand Island Temperature Statistics

September Temperature

Bar Harbor, Hancock County-Bar Harbor Airport (34.2 miles)

  • Lowest 24 September, 2026

    39 °F

  • Average September

    58.7 °F

  • Highest 10 September, 2026

    80.1 °F

Climate (2021–2026)

Bar Harbor, Hancock County-Bar Harbor Airport (34.2 miles)

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  • Average Low 2021–2026

    38.2 °F

  • Average 2021–2026

    46.5 °F

  • Average High 2021–2026

    54.6 °F
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