Nantucket Weather Forecast

    • 37
    • 46

    Increasing Clouds

    • 37
    • 47

    Rain Likely

    • 31
    • 42

    Chance Rain

    • 33
    • 39

    Partly Sunny

    • 33
    • 43

    Chance Rain

    • 36
    • 45

    Chance Rain

Today 21 Mar Nantucket

Mostly cloudy with a chance of rain in the Morning, then mostly sunny in the afternoon. Patchy fog in the morning. Highs in the mid 40s. West Winds 10 to 15 Mph with Gusts up to 30 Mph, becoming north in the afternoon. Chance of rain 50 percent.

Tonight 21 Mar Nantucket

Showers, breezy. Near steady temperature in the lower 40s. Southwest Winds 15 to 25 Mph. Chance of rain 80 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Nantucket Temperature Statistics

March Temperature

Nantucket, Nantucket Memorial Airport (2.5 miles)

  • Lowest 3 March, 2026

    14 °F

  • Average March

    39 °F

  • Highest 11 March, 2026

    55 °F

Climate (2021–Present)

Nantucket, Nantucket Memorial Airport (2.5 miles)

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  • Average Low 2021–2026

    47.1 °F

  • Average 2021–2026

    53.2 °F

  • Average High 2021–2026

    59.1 °F
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