Flat Island Weather Forecast

    • 28
    • 40

    Increasing Clouds

    • 29
    • 33

    Snow

    • 22
    • 33

    Chance Snow Showers

    • 30
    • 35

    Slight Chance Snow

    • 24
    • 38

    Chance Rain

    • 30
    • 39

    Rain/Snow Likely

    • 18
    • 37

    Partly Sunny

Today 21 Mar Coastal Washington

Partly sunny. Near steady temperature in the upper 30s. Northwest Winds 5 to 10 Mph with Gusts up to 25 Mph.

Tonight 21 Mar Coastal Washington

Mostly clear this Evening, then becoming mostly cloudy. Lows in the mid 20s. Northwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Flat Island Temperature Statistics

March Temperature

Bar Harbor, Hancock County-Bar Harbor Airport (32.3 miles)

  • Lowest 2 March, 2026

    1.9 °F

  • Average March

    33 °F

  • Highest 10 March, 2026

    64 °F

Climate (2021–Present)

Bar Harbor, Hancock County-Bar Harbor Airport (32.3 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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