Head Harbor Island - Sealand Weather Forecast

    • 47
    • 64

    Sunny

    • 49
    • 57

    Mostly Sunny

    • 50
    • 56

    Slight Chance Rain Showers

    • 46
    • 59

    Partly Sunny

    • 47
    • 56

    Partly Sunny

    • 47
    • 56

    Partly Sunny

Today 18 Sep Coastal Washington

Mostly sunny. Highs in the lower 70s. Northwest Winds around 5 Mph with Gusts up to 15 Mph, increasing to 10 to 15 Mph with Gusts up to 25 Mph this afternoon.

Tonight 18 Sep Coastal Washington

Clear. Lows in the mid 40s. Northwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

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Head Harbor Island - Sealand Temperature Statistics

September Temperature

Bar Harbor, Hancock County-Bar Harbor Airport (40.4 miles)

  • Lowest 9 September, 2026

    44.1 °F

  • Average September

    60.5 °F

  • Highest 10 September, 2026

    80.1 °F

Climate (2021–2026)

Bar Harbor, Hancock County-Bar Harbor Airport (40.4 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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