Surfside (Nantucket) Weather Forecast

    • 66
    • 79

    Increasing Clouds

    • 65
    • 75

    Rain Showers Likely

    • 66
    • 78

    Rain Showers

    • 67
    • 79

    Chance Rain Showers

    • 64
    • 78

    Mostly Sunny

    • 65
    • 77

    Mostly Sunny

Today 20 Aug Nantucket

Sunny. Patchy fog in the morning. Humid with Highs in the upper 70s. Southwest Winds 5 to 10 Mph.

Tonight 20 Aug Nantucket

Mostly clear. Patchy fog. Near steady temperature in the lower 70s. Southwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Surfside (Nantucket) Temperature Statistics

August Temperature

Nantucket, Nantucket Memorial Airport (0.6 miles)

  • Lowest 16 August, 2026

    57 °F

  • Average August

    71.6 °F

  • Highest 7 August, 2026

    80.1 °F

Climate (2021–2026)

Nantucket, Nantucket Memorial Airport (0.6 miles)

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  • Average Low 2021–2026

    46.9 °F

  • Average 2021–2026

    53 °F

  • Average High 2021–2026

    58.9 °F
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