Siasconset Weather Forecast

    • 31
    • 44

    Rain/Snow

    • 21
    • 36

    Snow

    • 27
    • 32

    Chance Snow

    • 31
    • 38

    Partly Sunny

    • 36
    • 47

    Partly Sunny

    • 39
    • 49

    Chance Rain

    • 28
    • 50

    Chance Rain

Today 13 Dec Nantucket

Cloudy with a 20 percent chance of rain. Near steady temperature in the mid 40s. Southwest Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 13 Dec Nantucket

A chance of rain this Evening, then rain and snow after midnight. Little or no snow accumulation. Lows in the lower 30s. West Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming northwest 5 to 10 Mph after midnight. Chance of precipitation near 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Siasconset Temperature Statistics

December Temperature

Nantucket, Nantucket Memorial Airport (4.3 miles)

  • Lowest 5 December, 2025

    21 °F

  • Average December

    37.4 °F

  • Highest 2 December, 2025

    52 °F

Climate (2020–Present)

Nantucket, Nantucket Memorial Airport (4.3 miles)

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  • Average Low 2020–2025

    47.3 °F

  • Average 2020–2025

    53.4 °F

  • Average High 2020–2025

    59.2 °F
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