Nantucket Harbor - Island Creek Entrance Weather Forecast

    • 61
    • 72

    Increasing Clouds

    • 64
    • 73

    Rain Showers

    • 60
    • 72

    Chance Rain Showers

    • 60
    • 67

    Mostly Sunny

    • 63
    • 69

    Mostly Sunny

    • 63
    • 72

    Partly Sunny

Today 12 Sep Nantucket

Sunny. Highs in the lower 70s. East Winds 5 to 10 Mph, becoming southeast in the afternoon.

Tonight 12 Sep Nantucket

Clear. Near steady temperature in the lower 60s. North Winds around 5 Mph.

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Nantucket Harbor - Island Creek Entrance Temperature Statistics

September Temperature

Nantucket, Nantucket Memorial Airport (3.7 miles)

  • Lowest 6 September, 2026

    55 °F

  • Average September

    66.7 °F

  • Highest 4 September, 2026

    78.1 °F

Climate (2021–2026)

Nantucket, Nantucket Memorial Airport (3.7 miles)

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  • Average Low 2021–2026

    46.8 °F

  • Average 2021–2026

    53 °F

  • Average High 2021–2026

    58.8 °F
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