Inner Sand Island Weather Forecast

    • 30
    • 51

    Rain

    • 31
    • 38

    Chance Rain Showers

    • 21
    • 42

    Chance Rain Showers

    • 18
    • 25

    Partly Sunny

    • 24
    • 34

    Snow Likely

    • 20
    • 32

    Slight Chance Snow

Today 19 Dec Coastal Washington

Rain with isolated Thunderstorms. Areas of fog this morning. Areas of fog this afternoon. Windy and not as cool with Highs in the lower 50s. South Winds 20 to 30 Mph. Gusts up to 45 Mph, increasing to 65 Mph this afternoon. Chance of rain near 100 percent.

Tonight 19 Dec Coastal Washington

Mostly cloudy. Rain with a slight chance of Thunderstorms in the evening. Patchy fog in the evening. Windy, Colder with Lows in the upper 20s. Southwest Winds 20 to 30 Mph with Gusts up to 65 Mph, becoming west 15 to 20 Mph with Gusts up to 45 Mph after midnight. Chance of rain 90 percent.

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Inner Sand Island Temperature Statistics

December Temperature

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

  • Lowest 9 December, 2025

    -0.9 °F

  • Average December

    24.2 °F

  • Highest 10 December, 2025

    45 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    38.4 °F

  • Average 2020–2025

    46.6 °F

  • Average High 2020–2025

    54.7 °F
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