Siasconset Weather Forecast

    • 64
    • 73

    Mostly Cloudy

    • 64
    • 78

    Mostly Sunny

    • 64
    • 76

    Rain Showers Likely

    • 62
    • 74

    Partly Sunny

    • 62
    • 74

    Partly Sunny

    • 62
    • 74

    Partly Sunny

    • 65
    • 78

    Chance Rain Showers

Today 12 Jun Nantucket

Mostly sunny. Near steady temperature around 70. Southwest Winds around 10 Mph.

Tonight 12 Jun Nantucket

Mostly cloudy. Lows in the mid 60s. Southwest Winds 5 to 10 Mph, becoming west after midnight.

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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

    59.3 °F

  • Highest 5 June, 2026

    75.9 °F

Climate (2021–Present)

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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