Great Cranberry Island - Bunker Head Weather Forecast

    • 58
    • 65

    Rain

    • 59
    • 63

    Chance Rain

    • 58
    • 65

    Partly Sunny

    • 58
    • 65

    Mostly Sunny

    • 58
    • 68

    Mostly Sunny

    • 59
    • 68

    Slight Chance Rain Showers

Today 22 Aug Coastal Hancock

Mostly cloudy with a 50 percent chance of rain. Highs in the mid 70s. East Winds 5 to 10 Mph.

Tonight 22 Aug Coastal Hancock

Rain likely. Areas of fog. Lows around 60. East Winds 5 to 10 Mph. Chance of rain 70 percent.

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Great Cranberry Island - Bunker Head Temperature Statistics

August Temperature

Bar Harbor, Hancock County-Bar Harbor Airport (15.5 miles)

  • Lowest 16 August, 2026

    51.1 °F

  • Average August

    68.9 °F

  • Highest 6 August, 2026

    90 °F

Climate (2021–2026)

Bar Harbor, Hancock County-Bar Harbor Airport (15.5 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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