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 in the morning. Highs in the lower 60s. Southwest Winds 5 to 10 Mph, increasing to around 15 Mph in the afternoon. Gusts up to 25 Mph.

Tonight 16 May Nantucket

Partly cloudy. Patchy fog. Near steady temperature in the upper 40s. Northwest Winds around 5 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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