Nantucket Harbor - Nantucket Weather Forecast

    • 24
    • 33

    Increasing Clouds

    • 36
    • 41

    Partly Sunny

    • 36
    • 51

    Chance Rain

    • 30
    • 45

    Chance Rain

    • 30
    • 40

    Chance Snow

    • 24
    • 40

    Chance Snow

Today 8 Dec Nantucket

Sunny this Morning, then becoming partly sunny. Windy, cooler with Highs in the lower 30s. North Winds 20 to 30 Mph.

Tonight 8 Dec Nantucket

Mostly cloudy. Near steady temperature in the upper 20s. North Winds 15 to 20 Mph.

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Nantucket Harbor - Nantucket Temperature Statistics

December Temperature

Nantucket, Nantucket Memorial Airport (2.5 miles)

  • Lowest 5 December, 2025

    21 °F

  • Average December

    38.1 °F

  • Highest 2 December, 2025

    52 °F

Climate (2020–Present)

Nantucket, Nantucket Memorial Airport (2.5 miles)

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  • Average Low 2020–2025

    47.3 °F

  • Average 2020–2025

    53.4 °F

  • Average High 2020–2025

    59.3 °F
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