Nassau Weather Forecast

    • 63
    • 79

    Mostly Sunny

    • 60
    • 78

    Mostly Sunny

    • 63
    • 82

    Partly Sunny

    • 71
    • 86

    Partly Sunny

    • 67
    • 90

    Partly Sunny

Today 6 Sep Inland Sussex

Sunny. A slight chance of Showers this afternoon. Highs in the lower 80s. Northeast Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 6 Sep Inland Sussex

Partly cloudy. A slight chance of Showers in the evening. Lows in the lower 60s. East Winds 5 to 10 Mph. Chance of rain 20 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Nassau Temperature Statistics

September Temperature

Georgetown - Delaware Coastal Airport (9.9 miles)

  • Lowest 1 September, 2026

    71.7 °F

  • Average September

    80 °F

  • Highest 1 September, 2026

    91.7 °F

Climate (2021–2026)

Georgetown - Delaware Coastal Airport (9.9 miles)

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

  • Average Low 2021–2026

    48.9 °F

  • Average 2021–2026

    58.6 °F

  • Average High 2021–2026

    68.3 °F
Get WillyWeather+ to remove ads