Potomac River - Whitestone Point Weather Forecast

    • 73
    • 89

    Mostly Sunny

    • 69
    • 91

    Rain Showers Likely

    • 68
    • 84

    Partly Sunny

    • 71
    • 83

    Chance Rain Showers

    • 70
    • 86

    Slight Chance Thunderstorms

    • 69
    • 86

    Slight Chance Thunderstorms

    • 71
    • 87

    Partly Sunny

Today 9 Sep Charles

Sunny. Highs in the upper 80s. South Winds around 15 Mph.

Tonight 9 Sep Charles

Mostly clear. Lows in the lower 70s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Potomac River - Whitestone Point Temperature Statistics

September Temperature

Fort Belvoir (3.7 miles)

  • Lowest 7 September, 2026

    61.2 °F

  • Average September

    77.2 °F

  • Highest 1 September, 2026

    96.4 °F

Climate (2021–2026)

Fort Belvoir (3.7 miles)

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  • Average Low 2021–2026

    47.8 °F

  • Average 2021–2026

    58.1 °F

  • Average High 2021–2026

    68.4 °F
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