Castine Weather Forecast

    • 6
    • 27

    Increasing Clouds

    • 15
    • 21

    Mostly Cloudy

    • 9
    • 26

    Slight Chance Snow

    • 5
    • 15

    Blustery

    • 10
    • 17

    Mostly Sunny

    • 17
    • 27

    Partly Sunny

    • 24
    • 32

    Chance Snow

Today 5 Feb Coastal Hancock

Partly sunny. A slight chance of snow Showers this afternoon. Highs in the mid 20s. Northwest Winds 5 to 10 Mph. Chance of snow 20 percent.

Tonight 5 Feb Coastal Hancock

Mostly clear this Evening, then becoming partly cloudy. Cold with Lows 2 to 10 above. North Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Castine Temperature Statistics

February Temperature

Bar Harbor, Hancock County-Bar Harbor Airport (21.1 miles)

  • Lowest 1 February, 2026

    1 °F

  • Average February

    17.5 °F

  • Highest 2 February, 2026

    32 °F

Climate (2021–Present)

Bar Harbor, Hancock County-Bar Harbor Airport (21.1 miles)

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  • Average Low 2021–2026

    38.2 °F

  • Average 2021–2026

    46.4 °F

  • Average High 2021–2026

    54.6 °F
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