Nantucket Harbor - Nantucket Weather Forecast

    • 61
    • 77

    Mostly Sunny

    • 59
    • 79

    Sunny

    • 67
    • 80

    Mostly Sunny

    • 70
    • 82

    Mostly Sunny

    • 70
    • 82

    Partly Sunny

    • 69
    • 81

    Partly Sunny

    • 69
    • 80

    Slight Chance Rain Showers

Today 11 Jul Nantucket

Mostly sunny. Near steady temperature in the mid 70s. Northeast Winds around 10 Mph.

Tonight 11 Jul Nantucket

Mostly clear. Lows around 60. East Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Nantucket Harbor - Nantucket Temperature Statistics

July Temperature

Nantucket, Nantucket Memorial Airport (2.5 miles)

  • Lowest 6 July, 2026

    61 °F

  • Average July

    70 °F

  • Highest 3 July, 2026

    87.1 °F

Climate (2021–2026)

Nantucket, Nantucket Memorial Airport (2.5 miles)

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  • Average Low 2021–2026

    46.9 °F

  • Average 2021–2026

    53.1 °F

  • Average High 2021–2026

    59 °F
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