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

Sunny. Highs in the upper 30s. North Winds 5 to 10 Mph, becoming northwest this afternoon. Gusts up to 25 Mph.

Tonight 24 Mar Coastal Hancock

Mostly cloudy. Lows in the upper 20s. Southwest Winds 10 to 15 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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