Madaket Harbor Weather Forecast

    • 45
    • 54

    Mostly Sunny

    • 54
    • 58

    Chance Rain Showers

    • 53
    • 58

    Chance Rain Showers

    • 53
    • 57

    Chance Rain Showers

    • 51
    • 57

    Chance Rain Showers

    • 50
    • 55

    Chance Rain Showers

    • 51
    • 53

    Chance Rain

Today 18 Oct Nantucket

Sunny. Highs in the upper 50s.

Tonight 18 Oct Nantucket

Clear. Lows in the mid 40s. East Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Madaket Harbor Temperature Statistics

October Temperature

Nantucket, Nantucket Memorial Airport (7.5 miles)

  • Lowest 15 October, 2026

    43 °F

  • Average October

    60 °F

  • Highest 2 October, 2026

    71.1 °F

Climate (2021–2026)

Nantucket, Nantucket Memorial Airport (7.5 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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