Nantucket Harbor - Third Point Weather Forecast

    • 53
    • 58

    Breezy

    • 53
    • 55

    Rain Showers

    • 48
    • 58

    Slight Chance Rain Showers

    • 48
    • 51

    Mostly Sunny

    • 49
    • 54

    Mostly Sunny

    • 53
    • 57

    Mostly Sunny

Today 20 Oct Nantucket

Partly sunny and breezy. Highs in the upper 50s. Northeast Winds 20 to 25 Mph with Gusts up to 45 Mph.

Tonight 20 Oct Nantucket

Mostly cloudy and windy. Near steady temperature in the mid 50s. Northeast Winds 20 to 30 Mph with Gusts up to 45 Mph.

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Nantucket Harbor - Third Point Temperature Statistics

October Temperature

Nantucket, Nantucket Memorial Airport (3.7 miles)

  • Lowest 18 October, 2026

    39.9 °F

  • Average October

    58.8 °F

  • Highest 2 October, 2026

    71.1 °F

Climate (2021–2026)

Nantucket, Nantucket Memorial Airport (3.7 miles)

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  • Average Low 2021–2026

    46.7 °F

  • Average 2021–2026

    52.9 °F

  • Average High 2021–2026

    58.7 °F
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