Siasconset Weather Forecast

    • 70
    • 84

    Thunderstorms

    • 67
    • 86

    Increasing Clouds

    • 64
    • 78

    Chance Rain Showers

    • 64
    • 76

    Rain Showers Likely

    • 65
    • 73

    Chance Rain Showers

    • 66
    • 72

    Slight Chance Rain Showers

    • 67
    • 75

    Slight Chance Rain Showers

Today 3 Jul Nantucket

Sunny. Near steady temperature in the lower 80s. Southwest Winds 10 to 15 Mph.

Tonight 3 Jul Nantucket

Mostly clear this Evening, then becoming partly cloudy. Lows in the lower 70s. West Winds 10 to 15 Mph. Gusts up to 25 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 1 July, 2026

    66 °F

  • Average July

    68.8 °F

  • Highest 1 July, 2026

    73.9 °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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