Deer Island Weather Forecast

    • 55
    • 72

    Mostly Sunny

    • 58
    • 78

    Mostly Sunny

    • 59
    • 81

    Mostly Cloudy

    • 54
    • 80

    Chance Rain Showers

    • 50
    • 71

    Chance Rain Showers

    • 52
    • 71

    Partly Sunny

Today 3 Jun Coastal Hancock

Sunny. Highs in the lower 70s. Southeast Winds around 5 Mph, becoming south with Gusts up to 20 Mph this afternoon.

Tonight 3 Jun Coastal Hancock

Clear. Lows in the lower 50s. Southwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Deer Island Temperature Statistics

June Temperature

Bar Harbor, Hancock County-Bar Harbor Airport (19.9 miles)

  • Lowest 1 June, 2026

    37 °F

  • Average June

    48.7 °F

  • Highest 1 June, 2026

    60.1 °F

Climate (2021–Present)

Bar Harbor, Hancock County-Bar Harbor Airport (19.9 miles)

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  • Average Low 2021–2026

    38.2 °F

  • Average 2021–2026

    46.4 °F

  • Average High 2021–2026

    54.5 °F
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