Nantucket Weather Forecast

    • 35
    • 40

    Increasing Clouds

    • 36
    • 48

    Partly Sunny

    • 43
    • 50

    Breezy

    • 28
    • 53

    Rain Likely

    • 34
    • 42

    Slight Chance Rain

    • 30
    • 47

    Slight Chance Snow

Today 16 Dec Nantucket

Mostly sunny. Highs in the lower 40s. West Winds 10 to 15 Mph.

Tonight 16 Dec Nantucket

Mostly cloudy. Not as cool with Lows in the mid 30s. Southwest Winds 15 to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Nantucket Temperature Statistics

December Temperature

Nantucket, Nantucket Memorial Airport (2.5 miles)

  • Lowest 5 December, 2025

    21 °F

  • Average December

    37 °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

    47.2 °F

  • Average 2020–2025

    53.4 °F

  • Average High 2020–2025

    59.2 °F
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