Potomac River - Chapman Point Weather Forecast

    • 54
    • 65

    Mostly Cloudy

    • 59
    • 71

    Becoming Sunny

    • 61
    • 73

    Partly Sunny

    • 62
    • 72

    Mostly Cloudy

    • 61
    • 74

    Partly Sunny

    • 61
    • 77

    Mostly Sunny

    • 65
    • 79

    Partly Sunny

Today 24 Sep Charles

Mostly sunny. Highs in the lower 80s.

Tonight 24 Sep Charles

Mostly cloudy this Evening, then becoming partly cloudy. Lows in the lower 50s. North Winds 5 to 10 Mph with Gusts up to 20 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Potomac River - Chapman Point Temperature Statistics

September Temperature

Fort Belvoir (6.8 miles)

  • Lowest 15 September, 2026

    53.8 °F

  • Average September

    74.7 °F

  • Highest 1 September, 2026

    96.4 °F

Climate (2021–2026)

Fort Belvoir (6.8 miles)

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

  • Average Low 2021–2026

    47.8 °F

  • Average 2021–2026

    58.2 °F

  • Average High 2021–2026

    68.4 °F
Get WillyWeather+ to remove ads