Nantucket Harbor - First Point Weather Forecast

    • 55
    • 66

    Mostly Sunny

    • 54
    • 71

    Mostly Sunny

    • 54
    • 66

    Partly Sunny

    • 56
    • 70

    Mostly Sunny

    • 55
    • 70

    Chance Rain Showers

    • 52
    • 64

    Chance Rain Showers

Today 16 May Nantucket

Sunny. Patchy fog this morning. Not as cool with Highs in the mid 60s. Southwest Winds 10 to 15 Mph. Gusts up to 25 Mph this afternoon.

Tonight 16 May Nantucket

Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 50s. Southwest Winds 15 to 20 Mph with Gusts up to 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Nantucket Harbor - First Point Temperature Statistics

May Temperature

Nantucket, Nantucket Memorial Airport (2.5 miles)

  • Lowest 2 May, 2026

    44.1 °F

  • Average May

    51.5 °F

  • Highest 5 May, 2026

    59 °F

Climate (2021–Present)

Nantucket, Nantucket Memorial Airport (2.5 miles)

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  • Average Low 2021–2026

    47 °F

  • Average 2021–2026

    53.1 °F

  • Average High 2021–2026

    59 °F
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