Nantucket Harbor - Pocomo Head Weather Forecast

    • 38
    • 42

    Rain

    • 33
    • 41

    Chance Rain

    • 26
    • 41

    Chance Rain

    • 28
    • 31

    Snow Likely

    • 34
    • 36

    Chance Snow

    • 29
    • 44

    Rain Likely

Today 23 Dec Nantucket

Rain. Patchy fog. Near steady temperature in the upper 30s. South Winds 5 to 10 Mph. Chance of rain 90 percent.

Tonight 23 Dec Nantucket

Mostly cloudy. Rain Likely, mainly in the evening. Patchy fog. Near steady temperature in the upper 30s. Southeast Winds 5 to 10 Mph, increasing to west 15 to 20 Mph with Gusts up to 30 Mph after midnight. Chance of rain 70 percent.

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Nantucket Harbor - Pocomo Head Temperature Statistics

December Temperature

Nantucket, Nantucket Memorial Airport (4.3 miles)

  • Lowest 15 December, 2025

    16 °F

  • Average December

    37.1 °F

  • Highest 19 December, 2025

    55 °F

Climate (2020–Present)

Nantucket, Nantucket Memorial Airport (4.3 miles)

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  • Average Low 2020–2025

    47.2 °F

  • Average 2020–2025

    53.4 °F

  • Average High 2020–2025

    59.2 °F
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