Dunn Island Weather Forecast

    • 52
    • 72

    Mostly Sunny

    • 53
    • 64

    Mostly Cloudy

    • 53
    • 58

    Rain Likely

    • 57
    • 69

    Mostly Sunny

    • 57
    • 76

    Partly Sunny

    • 56
    • 74

    Chance Rain Showers

Today 15 Aug Coastal Washington

Mostly sunny. Highs in the upper 70s. Northwest Winds 5 to 10 Mph.

Tonight 15 Aug Coastal Washington

Clear. Lows in the lower 50s. Northwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Dunn Island Temperature Statistics

August Temperature

Bar Harbor, Hancock County-Bar Harbor Airport (41 miles)

  • Lowest 1 August, 2026

    57 °F

  • Average August

    70.4 °F

  • Highest 6 August, 2026

    90 °F

Climate (2021–2026)

Bar Harbor, Hancock County-Bar Harbor Airport (41 miles)

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  • Average Low 2021–2026

    38.3 °F

  • Average 2021–2026

    46.5 °F

  • Average High 2021–2026

    54.6 °F
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