Bar Harbor Weather Forecast

    • 16
    • 21

    Partly Sunny

    • 28
    • 33

    Mostly Cloudy

    • 27
    • 41

    Partly Sunny

    • 42
    • 47

    Rain Likely

    • 16
    • 50

    Chance Rain

    • 26
    • 36

    Chance Rain/Snow

Today 15 Dec Coastal Hancock

Partly sunny. Highs in the lower 20s. Northwest Winds 15 to 20 Mph with Gusts up to 35 Mph.

Tonight 15 Dec Coastal Hancock

Mostly clear this Evening, then becoming partly cloudy. Cold with Lows 11 to 17. West Winds 10 to 15 Mph. Gusts up to 35 Mph, decreasing to 25 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Bar Harbor Temperature Statistics

December Temperature

Bar Harbor, Hancock County-Bar Harbor Airport (8.7 miles)

  • Lowest 9 December, 2025

    -0.9 °F

  • Average December

    23.6 °F

  • Highest 10 December, 2025

    45 °F

Climate (2020–Present)

Bar Harbor, Hancock County-Bar Harbor Airport (8.7 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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