Southwest Harbor Weather Forecast

    • 34
    • 47

    Decreasing Clouds

    • 35
    • 48

    Decreasing Clouds

    • 32
    • 49

    Mostly Sunny

    • 35
    • 45

    Rain Likely

    • 23
    • 48

    Rain Likely

    • 29
    • 39

    Chance Snow

    • 24
    • 42

    Slight Chance Snow

Today 8 Mar Coastal Hancock

Partly sunny and not as cool. Near steady temperature in the upper 40s. West Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 8 Mar Coastal Hancock

Partly cloudy this Evening, then clearing. Lows in the lower 30s. West Winds 5 to 10 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Southwest Harbor Temperature Statistics

March Temperature

Bar Harbor, Hancock County-Bar Harbor Airport (11.8 miles)

  • Lowest 2 March, 2026

    1.9 °F

  • Average March

    25.8 °F

  • Highest 4 March, 2026

    39.9 °F

Climate (2021–Present)

Bar Harbor, Hancock County-Bar Harbor Airport (11.8 miles)

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  • Average Low 2021–2026

    38.3 °F

  • Average 2021–2026

    46.5 °F

  • Average High 2021–2026

    54.7 °F
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