Nantucket Weather Forecast

    • 58
    • 72

    Partly Sunny

    • 58
    • 70

    Partly Sunny

    • 61
    • 71

    Mostly Cloudy

    • 62
    • 73

    Dense Fog

    • 56
    • 74

    Patchy Fog

    • 55
    • 67

    Partly Sunny

Today 15 Sep Nantucket

Mostly sunny. Highs around 70. Northeast Winds 5 to 10 Mph.

Tonight 15 Sep Nantucket

Partly cloudy. Patchy fog. Lows around 60. East Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Nantucket Temperature Statistics

September Temperature

Nantucket, Nantucket Memorial Airport (2.5 miles)

  • Lowest 9 September, 2025

    51.1 °F

  • Average September

    64.8 °F

  • Highest 6 September, 2025

    75.9 °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

    47.5 °F

  • Average 2020–2025

    53.6 °F

  • Average High 2020–2025

    59.4 °F
Get WillyWeather+ to remove ads