Nantucket Harbor - Second Point Weather Forecast

    • 57
    • 66

    Mostly Sunny

    • 63
    • 69

    Mostly Sunny

    • 64
    • 72

    Chance Rain Showers

    • 61
    • 72

    Slight Chance Rain Showers

    • 60
    • 69

    Chance Rain Showers

    • 60
    • 71

    Chance Rain

Today 15 Sep Nantucket

Sunny. Highs in the mid 60s. Northeast Winds 10 to 15 Mph.

Tonight 15 Sep Nantucket

Clear, cooler. Near steady temperature around 60. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

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Nantucket Harbor - Second Point Temperature Statistics

September Temperature

Nantucket, Nantucket Memorial Airport (3.1 miles)

  • Lowest 6 September, 2026

    55 °F

  • Average September

    67 °F

  • Highest 4 September, 2026

    78.1 °F

Climate (2021–2026)

Nantucket, Nantucket Memorial Airport (3.1 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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