Chesapeake Bay - James Island Weather Forecast

    • 70
    • 79

    Mostly Sunny

    • 71
    • 78

    Partly Sunny

    • 72
    • 80

    Mostly Sunny

    • 77
    • 83

    Mostly Sunny

    • 73
    • 85

    Chance Rain Showers

    • 71
    • 79

    Mostly Sunny

Today 6 Sep Dorchester

Mostly sunny. Highs in the lower 80s. North Winds 5 to 10 Mph.

Tonight 6 Sep Dorchester

Mostly clear. Lows in the lower 60s. East Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Chesapeake Bay - James Island Temperature Statistics

September Temperature

Cambridge-Dorchester Airport (16.2 miles)

  • Lowest 1 September, 2026

    69.8 °F

  • Average September

    79.1 °F

  • Highest 1 September, 2026

    93.2 °F

Climate (2021–2026)

Cambridge-Dorchester Airport (16.2 miles)

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

  • Average Low 2021–2026

    49 °F

  • Average 2021–2026

    58 °F

  • Average High 2021–2026

    66.7 °F
Get WillyWeather+ to remove ads