Nantucket Harbor - Brant Point Lighthouse Weather Forecast

    • 38
    • 51

    Rain Showers

    • 21
    • 43

    Slight Chance Snow Showers

    • 30
    • 37

    Slight Chance Rain

    • 33
    • 42

    Slight Chance Rain

    • 26
    • 38

    Chance Snow

    • 25
    • 35

    Chance Snow

Today 14 Jan Nantucket

Mostly cloudy this Morning, then becoming partly sunny. Highs in the lower 50s. South Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 14 Jan Nantucket

Rain likely in the Evening, then Showers after midnight. Patchy fog in the evening. Near steady temperature in the lower 40s. South Winds 10 to 15 Mph. Chance of rain 80 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Nantucket Harbor - Brant Point Lighthouse Temperature Statistics

January Temperature

Nantucket, Nantucket Memorial Airport (2.5 miles)

  • Lowest 1 January, 2026

    19 °F

  • Average January

    33.7 °F

  • Highest 9 January, 2026

    48 °F

Climate (2021–Present)

Nantucket, Nantucket Memorial Airport (2.5 miles)

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  • Average Low 2021–2026

    47.2 °F

  • Average 2021–2026

    53.3 °F

  • Average High 2021–2026

    59.2 °F
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