Potomac River - Fort Washington Light Weather Forecast

    • 70
    • 86

    Chance Rain Showers

    • 57
    • 82

    Partly Sunny

    • 58
    • 81

    Mostly Sunny

    • 63
    • 85

    Mostly Sunny

    • 66
    • 86

    Mostly Sunny

    • 66
    • 87

    Chance Rain Showers

Today 13 Sep Prince Georges

Partly sunny with scattered Showers and Thunderstorms. Highs in the mid 80s. West Winds around 5 Mph. Chance of rain 30 percent.

Tonight 13 Sep Prince Georges

Partly cloudy. Isolated Showers and Thunderstorms in the evening. Lows in the upper 60s. West Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 20 percent.

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Potomac River - Fort Washington Light Temperature Statistics

September Temperature

Fort Belvoir (7.5 miles)

  • Lowest 8 September, 2026

    58.8 °F

  • Average September

    76.8 °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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