Nantucket Harbor - Five Fingered Point Weather Forecast

    • 66
    • 72

    Increasing Clouds

    • 56
    • 71

    Chance Rain Showers

    • 58
    • 63

    Partly Sunny

    • 60
    • 68

    Chance Rain Showers

    • 60
    • 67

    Chance Rain Showers

    • 59
    • 66

    Chance Rain Showers

Today 17 Sep Nantucket

Sunny. Highs in the lower 70s. South Winds 5 to 10 Mph.

Tonight 17 Sep Nantucket

Mostly cloudy. A chance of Showers after midnight. Humid with Lows in the mid 60s. Southwest Winds 10 to 15 Mph. Gusts up to 25 Mph after midnight. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Nantucket Harbor - Five Fingered Point Temperature Statistics

September Temperature

Nantucket, Nantucket Memorial Airport (3.7 miles)

  • Lowest 6 September, 2026

    55 °F

  • Average September

    67.1 °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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