Nantucket Harbor - Third Point Weather Forecast

    • 40
    • 47

    Slight Chance Rain Showers

    • 41
    • 44

    Partly Sunny

    • 44
    • 47

    Chance Rain Showers

    • 44
    • 50

    Mostly Cloudy

    • 44
    • 49

    Slight Chance Rain Showers

    • 45
    • 48

    Chance Rain Showers

Today 20 Apr Nantucket

Sunny. Highs around 50. West Winds 5 to 10 Mph, becoming southwest in the afternoon.

Tonight 20 Apr Nantucket

Mostly cloudy. Lows in the upper 30s. West Winds 5 to 10 Mph, becoming north 10 to 15 Mph after midnight.

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Nantucket Harbor - Third Point Temperature Statistics

April Temperature

Nantucket, Nantucket Memorial Airport (3.7 miles)

  • Lowest 9 April, 2026

    24.1 °F

  • Average April

    45.6 °F

  • Highest 16 April, 2026

    66 °F

Climate (2021–Present)

Nantucket, Nantucket Memorial Airport (3.7 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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