Sankaty Head Lighthouse Weather Forecast

    • 69
    • 79

    Rain Showers

    • 64
    • 71

    Mostly Sunny

    • 65
    • 72

    Mostly Sunny

    • 69
    • 80

    Rain Showers

    • 69
    • 81

    Rain Showers Likely

    • 68
    • 80

    Chance Rain Showers

Today 18 Jul Nantucket

Partly sunny this Morning, then mostly cloudy with Showers with a chance of Thunderstorms this afternoon. Areas of smoke this Morning, then patchy smoke this afternoon. Locally heavy rainfall possible this afternoon. Highs in the upper 70s. South Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain 80 percent.

Tonight 18 Jul Nantucket

Showers with a chance of Thunderstorms in the Evening, then Showers likely with a chance of Thunderstorms after midnight. Locally heavy rainfall possible in the evening. Humid with Lows around 70. Southwest Winds 15 to 20 Mph with Gusts up to 35 Mph. Chance of rain 80 percent.

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Sankaty Head Lighthouse Temperature Statistics

July Temperature

Nantucket, Nantucket Memorial Airport (5 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 (5 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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