Siasconset Weather Forecast

    • 59
    • 70

    Becoming Sunny

    • 59
    • 77

    Mostly Sunny

    • 64
    • 76

    Mostly Sunny

    • 65
    • 78

    Rain Showers

    • 65
    • 77

    Chance Rain Showers

    • 65
    • 76

    Mostly Sunny

    • 66
    • 77

    Partly Sunny

Today 19 Jun Nantucket

Partly sunny. Highs in the mid 70s. West Winds 15 to 20 Mph.

Tonight 19 Jun Nantucket

Mostly clear. Lows in the mid 60s. West Winds 15 to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Siasconset Temperature Statistics

June Temperature

Nantucket, Nantucket Memorial Airport (4.3 miles)

  • Lowest 2 June, 2026

    42.1 °F

  • Average June

    62.2 °F

  • Highest 13 June, 2026

    81 °F

Climate (2021–2026)

Nantucket, Nantucket Memorial Airport (4.3 miles)

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  • Average Low 2021–2026

    47 °F

  • Average 2021–2026

    53.1 °F

  • Average High 2021–2026

    59 °F
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