Potomac River - Marshall Hall Weather Forecast

    • 64
    • 81

    Mostly Sunny

    • 66
    • 84

    Partly Sunny

    • 66
    • 82

    Partly Sunny

    • 64
    • 78

    Mostly Cloudy

    • 64
    • 77

    Mostly Cloudy

    • 64
    • 78

    Slight Chance Thunderstorms

Today 13 Sep Charles

Sunny. Highs in the lower 80s. Light and variable Winds, becoming southeast around 5 Mph in the afternoon.

Tonight 13 Sep Charles

Clear. Lows in the mid 50s. West Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Potomac River - Marshall Hall Temperature Statistics

September Temperature

Fort Belvoir (5 miles)

  • Lowest 9 September, 2025

    49.8 °F

  • Average September

    66.7 °F

  • Highest 6 September, 2025

    92.7 °F

Climate (2020–Present)

Fort Belvoir (5 miles)

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

  • Average Low 2020–2025

    47.8 °F

  • Average 2020–2025

    58.1 °F

  • Average High 2020–2025

    68.3 °F
Get WillyWeather+ to remove ads