Nantucket Harbor - Brant Point Lighthouse Weather Forecast

    • 46
    • 47

    Rain

    • 30
    • 47

    Rain Likely

    • 33
    • 40

    Breezy

    • 28
    • 41

    Mostly Sunny

    • 29
    • 38

    Partly Sunny

    • 31
    • 41

    Mostly Sunny

Today 5 Mar Nantucket

Cloudy. Near steady temperature in the upper 40s. South Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 5 Mar Nantucket

Rain after midnight. Windy. Near steady temperature in the mid 40s. South Winds 15 to 25 Mph, increasing to 25 to 30 Mph after midnight. Gusts up to 45 Mph. Chance of rain near 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Nantucket Harbor - Brant Point Lighthouse Temperature Statistics

March Temperature

Nantucket, Nantucket Memorial Airport (2.5 miles)

  • Lowest 3 March, 2025

    19.9 °F

  • Average March

    30.3 °F

  • Highest 1 March, 2025

    48 °F

Climate (2020–Present)

Nantucket, Nantucket Memorial Airport (2.5 miles)

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  • Average Low 2020–2025

    47.6 °F

  • Average 2020–2025

    53.5 °F

  • Average High 2020–2025

    59.2 °F
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