Nantucket Weather Forecast

    • 67
    • 81

    Patchy Fog

    • 62
    • 77

    Chance Rain Showers

    • 61
    • 72

    Rain Showers Likely

    • 63
    • 74

    Sunny

    • 63
    • 75

    Mostly Sunny

    • 64
    • 76

    Partly Sunny

Today 30 Jul Nantucket

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

Tonight 30 Jul Nantucket

Partly cloudy in the Evening, then becoming mostly cloudy. Patchy fog. Humid with Lows in the upper 60s. Southwest Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Nantucket Temperature Statistics

July Temperature

Nantucket, Nantucket Memorial Airport (2.5 miles)

  • Lowest 5 July, 2025

    54.6 °F

  • Average July

    69.8 °F

  • Highest 18 July, 2025

    82.7 °F

Climate (2020–Present)

Nantucket, Nantucket Memorial Airport (2.5 miles)

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  • Average Low 2020–2025

    47.6 °F

  • Average 2020–2025

    53.6 °F

  • Average High 2020–2025

    59.4 °F
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