Nantucket Harbor Weather Forecast

    • 37
    • 45

    Mostly Cloudy

    • 39
    • 49

    Mostly Cloudy

    • 43
    • 52

    Rain Likely

    • 36
    • 51

    Rain

    • 38
    • 45

    Mostly Sunny

    • 40
    • 48

    Partly Sunny

Today 14 Mar Nantucket

Cloudy this Morning, then becoming partly sunny. Patchy fog this morning. Highs in the mid 40s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 14 Mar Nantucket

Mostly cloudy. Patchy fog after midnight. Near steady temperature in the upper 30s. Northeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Nantucket Harbor Temperature Statistics

March Temperature

Nantucket, Nantucket Memorial Airport (2.5 miles)

  • Lowest 3 March, 2025

    19.9 °F

  • Average March

    37.8 °F

  • Highest 10 March, 2025

    51.1 °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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