Nantucket Harbor - Nantucket Weather Forecast

    • 52
    • 66

    Rain Showers

    • 55
    • 64

    Chance Rain Showers

    • 52
    • 65

    Rain Showers

    • 48
    • 61

    Chance Rain Showers

    • 46
    • 60

    Mostly Sunny

    • 48
    • 59

    Partly Sunny

Today 20 Oct Nantucket

Showers with a chance of Thunderstorms. Patchy fog. Near steady temperature around 60. Southwest Winds 15 to 20 Mph with Gusts up to 35 Mph. Chance of rain 90 percent.

Tonight 20 Oct Nantucket

Partly cloudy in the Evening, then becoming mostly clear. Near steady temperature in the upper 50s. Southwest Winds 15 to 20 Mph with Gusts up to 30 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Nantucket Harbor - Nantucket Temperature Statistics

October Temperature

Nantucket, Nantucket Memorial Airport (2.5 miles)

  • Lowest 3 October, 2025

    41 °F

  • Average October

    58 °F

  • Highest 4 October, 2025

    72 °F

Climate (2020–Present)

Nantucket, Nantucket Memorial Airport (2.5 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    47.4 °F

  • Average 2020–2025

    53.6 °F

  • Average High 2020–2025

    59.4 °F
Get WillyWeather+ to remove ads