Nantucket Harbor - Island Creek Entrance Weather Forecast

    • 67
    • 72

    Increasing Clouds

    • 66
    • 70

    Rain Showers

    • 66
    • 72

    Chance Rain Showers

    • 66
    • 74

    Partly Sunny

    • 67
    • 74

    Partly Sunny

    • 68
    • 78

    Mostly Cloudy

Today 28 Jul Nantucket

Mostly sunny. Near steady temperature in the lower 70s. South Winds 10 to 15 Mph.

Tonight 28 Jul Nantucket

Mostly cloudy. A slight chance of Showers with isolated Thunderstorms after midnight. Humid. Near steady temperature in the upper 60s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

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Nantucket Harbor - Island Creek Entrance Temperature Statistics

July Temperature

Nantucket, Nantucket Memorial Airport (3.7 miles)

  • Lowest 24 July, 2026

    55 °F

  • Average July

    69.3 °F

  • Highest 3 July, 2026

    87.1 °F

Climate (2021–2026)

Nantucket, Nantucket Memorial Airport (3.7 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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