Deer Island Weather Forecast

    • 23
    • 43

    Decreasing Clouds

    • 20
    • 26

    Partly Sunny

    • 29
    • 37

    Rain Likely

    • 24
    • 38

    Chance Rain/Snow

    • 16
    • 33

    Mostly Cloudy

    • 8
    • 25

    Slight Chance Snow

Today 15 Jan Coastal Hancock

Cloudy. A slight chance of rain this morning. Areas of fog this Morning, then patchy fog this afternoon. Highs in the lower 40s. South Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 20 percent.

Tonight 15 Jan Coastal Hancock

Patchy fog this evening. Mostly cloudy. Cooler with Lows in the lower 20s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Deer Island Temperature Statistics

January Temperature

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

  • Lowest 5 January, 2026

    -0.9 °F

  • Average January

    24.9 °F

  • Highest 10 January, 2026

    45 °F

Climate (2021–Present)

Bar Harbor, Hancock County-Bar Harbor Airport (19.9 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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