Sankaty Head Lighthouse Weather Forecast

    • 30
    • 52

    Rain

    • 35
    • 41

    Partly Sunny

    • 26
    • 46

    Partly Sunny

    • 27
    • 34

    Partly Sunny

    • 31
    • 42

    Chance Rain

    • 31
    • 40

    Partly Sunny

Today 19 Dec Nantucket

Rain this Morning, then rain with isolated Thunderstorms this afternoon. Patchy fog this morning. Very windy with Highs in the lower 50s. South Winds 30 to 40 Mph with Gusts up to 60 Mph. Chance of rain near 100 percent.

Tonight 19 Dec Nantucket

Mostly cloudy with a slight chance of rain Showers in the Evening, then partly cloudy after midnight. Very windy and cooler with Lows around 30. West Winds 25 to 35 Mph with Gusts up to 45 Mph. Chance of rain 20 percent.

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Sankaty Head Lighthouse Temperature Statistics

December Temperature

Nantucket, Nantucket Memorial Airport (5 miles)

  • Lowest 15 December, 2025

    16 °F

  • Average December

    35.5 °F

  • Highest 2 December, 2025

    52 °F

Climate (2020–Present)

Nantucket, Nantucket Memorial Airport (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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