Nantucket Harbor - First Point Weather Forecast

    • 58
    • 72

    Mostly Cloudy

    • 57
    • 68

    Isolated Thunderstorms

    • 53
    • 69

    Partly Sunny

    • 53
    • 66

    Chance Rain Showers

    • 52
    • 65

    Chance Rain Showers

    • 53
    • 65

    Partly Sunny

Today 26 May Nantucket

Partly sunny. Areas of fog in the morning. Highs in the lower 70s. Northeast Winds around 5 Mph, becoming south in the afternoon.

Tonight 26 May Nantucket

Mostly cloudy. Areas of fog after midnight. Lows in the upper 50s. Southwest Winds 10 to 15 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

    53.6 °F

  • Highest 17 May, 2026

    69.1 °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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