Outer Sand Island Weather Forecast

    • 53
    • 58

    Increasing Clouds

    • 56
    • 57

    Rain Showers Likely

    • 47
    • 63

    Mostly Sunny

    • 50
    • 56

    Partly Sunny

    • 50
    • 56

    Chance Rain Showers

    • 50
    • 56

    Chance Rain Showers

Today 16 Sep Coastal Washington

Partly sunny in the Morning, then clearing. Patchy dense fog in the morning with visibility one quarter mile or less at Times. Highs in the mid 60s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 16 Sep Coastal Washington

Partly cloudy in the Evening, then becoming mostly cloudy. Patchy fog. Lows in the lower 50s. Southwest Winds 5 to 10 Mph in the Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Outer Sand Island Temperature Statistics

September Temperature

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

  • Lowest 9 September, 2026

    44.1 °F

  • Average September

    60.9 °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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