Siasconset Weather Forecast

    • 66
    • 80

    Slight Chance Rain Showers

    • 65
    • 76

    Partly Sunny

    • 65
    • 76

    Mostly Sunny

    • 66
    • 77

    Mostly Sunny

    • 70
    • 78

    Mostly Sunny

    • 70
    • 80

    Slight Chance Rain Showers

    • 69
    • 80

    Slight Chance Rain Showers

Today 10 Jul Nantucket

Partly sunny with a 20 percent chance of Showers. Near steady temperature in the upper 70s. West Winds 5 to 10 Mph.

Tonight 10 Jul Nantucket

Mostly cloudy with a chance of Showers this Evening, then partly cloudy after midnight. Patchy fog. Lows in the upper 60s. South Winds around 5 Mph, becoming northwest after midnight. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Siasconset Temperature Statistics

July Temperature

Nantucket, Nantucket Memorial Airport (4.3 miles)

  • Lowest 6 July, 2026

    61 °F

  • Average July

    70.1 °F

  • Highest 3 July, 2026

    87.1 °F

Climate (2021–2026)

Nantucket, Nantucket Memorial Airport (4.3 miles)

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  • Average Low 2021–2026

    46.9 °F

  • Average 2021–2026

    53.1 °F

  • Average High 2021–2026

    59 °F
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