Nantucket Harbor - Second Point Weather Forecast

    • 65
    • 75

    Rain Showers Likely

    • 65
    • 74

    Chance Rain Showers

    • 65
    • 68

    Partly Sunny

    • 66
    • 75

    Mostly Cloudy

    • 68
    • 76

    Chance Rain Showers

    • 68
    • 77

    Chance Rain Showers

Today 29 Jul Nantucket

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms, then Showers likely with a chance of Thunderstorms. Patchy fog. Near steady temperature in the lower 70s. Southeast Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 70 percent.

Tonight 29 Jul Nantucket

Mostly cloudy. Showers likely with a chance of Thunderstorms in the Evening, then a chance of Showers with a slight chance of Thunderstorms after midnight. Patchy fog. Breezy with Lows in the mid 60s. Southeast Winds 20 to 25 Mph with Gusts up to 35 Mph, Diminishing to 5 to 10 Mph with Gusts up to 20 Mph after midnight. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

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Nantucket Harbor - Second Point Temperature Statistics

July Temperature

Nantucket, Nantucket Memorial Airport (3.1 miles)

  • Lowest 24 July, 2026

    55 °F

  • Average July

    69.2 °F

  • Highest 3 July, 2026

    87.1 °F

Climate (2021–2026)

Nantucket, Nantucket Memorial Airport (3.1 miles)

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  • Average Low 2021–2026

    46.9 °F

  • Average 2021–2026

    53.1 °F

  • Average High 2021–2026

    58.9 °F
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