Siasconset Weather Forecast

    • 40
    • 47

    Increasing Clouds

    • 39
    • 52

    Rain

    • 28
    • 45

    Rain Likely

    • 29
    • 36

    Partly Sunny

    • 35
    • 41

    Partly Sunny

    • 38
    • 46

    Slight Chance Rain

Today 25 Mar Nantucket

Partly sunny. Near steady temperature in the mid 40s. West Winds around 10 Mph. Gusts up to 20 Mph.

Tonight 25 Mar Nantucket

Mostly cloudy. Lows around 40. South Winds 10 to 15 Mph with Gusts up to 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Siasconset Temperature Statistics

March Temperature

Nantucket, Nantucket Memorial Airport (4.3 miles)

  • Lowest 3 March, 2026

    14 °F

  • Average March

    39.2 °F

  • Highest 11 March, 2026

    55 °F

Climate (2021–Present)

Nantucket, Nantucket Memorial Airport (4.3 miles)

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  • Average Low 2021–2026

    47 °F

  • Average 2021–2026

    53.2 °F

  • Average High 2021–2026

    59.1 °F
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