Siasconset Weather Forecast

    • 63
    • 79

    Patchy Smoke

    • 69
    • 76

    Rain Showers

    • 64
    • 80

    Mostly Sunny

    • 66
    • 76

    Mostly Sunny

    • 68
    • 76

    Rain Showers

    • 68
    • 77

    Rain Showers Likely

    • 67
    • 77

    Chance Rain Showers

Today 17 Jul Nantucket

Sunny. Near steady temperature in the upper 70s. Southwest Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 17 Jul Nantucket

Mostly clear this Evening, then becoming partly cloudy. Patchy smoke after midnight. Lows in the lower 60s. Southwest Winds 5 to 10 Mph. Gusts up to 20 Mph this evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Siasconset Temperature Statistics

July Temperature

Nantucket, Nantucket Memorial Airport (4.3 miles)

  • Lowest 12 July, 2026

    55.9 °F

  • Average July

    70.2 °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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