Potomac River - Fort Washington Light Weather Forecast

    • 57
    • 72

    Partly Sunny

    • 57
    • 68

    Chance Rain

    • 60
    • 65

    Chance Rain

    • 61
    • 71

    Mostly Cloudy

    • 60
    • 75

    Partly Sunny

    • 62
    • 78

    Partly Sunny

    • 64
    • 79

    Mostly Cloudy

Today 25 Sep Prince Georges

Sunny. Highs in the lower 70s. North Winds 15 to 20 Mph.

Tonight 25 Sep Prince Georges

Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 50s. North Winds 10 to 15 Mph with Gusts up to 25 Mph.

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Potomac River - Fort Washington Light Temperature Statistics

September Temperature

Fort Belvoir (7.5 miles)

  • Lowest 15 September, 2026

    53.8 °F

  • Average September

    74.1 °F

  • Highest 1 September, 2026

    96.4 °F

Climate (2021–2026)

Fort Belvoir (7.5 miles)

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  • Average Low 2021–2026

    47.8 °F

  • Average 2021–2026

    58.2 °F

  • Average High 2021–2026

    68.4 °F
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