Southwest Harbor Weather Forecast

    • 30
    • 40

    Decreasing Clouds

    • 34
    • 43

    Chance Rain

    • 33
    • 47

    Rain

    • 13
    • 42

    Mostly Sunny

    • 21
    • 30

    Partly Sunny

    • 28
    • 39

    Partly Sunny

Today 24 Mar Coastal Hancock

Mostly sunny. Near steady temperature in the upper 30s. West Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 24 Mar Coastal Hancock

Mostly cloudy. Lows in the upper 20s. Southwest Winds 5 to 10 Mph with Gusts up to 30 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

    33.1 °F

  • Highest 10 March, 2026

    64 °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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