Nantucket Harbor - Children's Beach Weather Forecast

    • 59
    • 74

    Becoming Sunny

    • 64
    • 71

    Slight Chance Thunderstorms

    • 66
    • 74

    Rain Showers

    • 60
    • 73

    Mostly Sunny

    • 60
    • 68

    Mostly Sunny

    • 63
    • 69

    Partly Sunny

    • 63
    • 73

    Chance Rain Showers

Today 11 Sep Nantucket

Sunny. Near steady temperature in the lower 70s. West Winds 5 to 10 Mph.

Tonight 11 Sep Nantucket

Clear. Lows in the upper 50s. South Winds around 5 Mph, becoming northeast after midnight.

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  • Temperature Real-Time

Nantucket Harbor - Children's Beach Temperature Statistics

September Temperature

Nantucket, Nantucket Memorial Airport (2.5 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 (2.5 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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