Siasconset Weather Forecast

    • 62
    • 70

    Slight Chance Rain Showers

    • 59
    • 72

    Chance Rain Showers

    • 59
    • 72

    Partly Sunny

    • 63
    • 75

    Partly Sunny

    • 66
    • 75

    Chance Rain Showers

    • 67
    • 79

    Chance Rain Showers

    • 68
    • 75

    Partly Sunny

Today 26 Jun Nantucket

Mostly cloudy with a 20 percent chance of Showers. Near steady temperature in the lower 70s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 26 Jun Nantucket

Cloudy. Patchy fog. A slight chance of Showers after midnight. Lows in the lower 60s. Southwest Winds 5 to 10 Mph. Gusts up to 20 Mph this evening. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Siasconset Temperature Statistics

June Temperature

Nantucket, Nantucket Memorial Airport (4.3 miles)

  • Lowest 2 June, 2026

    42.1 °F

  • Average June

    63.3 °F

  • Highest 13 June, 2026

    81 °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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