Potomac River - Fort Washington Light Weather Forecast

    • 66
    • 80

    Mostly Cloudy

    • 65
    • 85

    Rain Showers Likely

    • 64
    • 73

    Chance Rain Showers

    • 59
    • 68

    Rain Showers Likely

    • 58
    • 64

    Chance Rain Showers

    • 56
    • 66

    Chance Rain Showers

Today 19 Sep Prince Georges

Mostly sunny. Highs in the upper 70s. Northeast Winds 5 to 10 Mph.

Tonight 19 Sep Prince Georges

Mostly cloudy. Lows in the mid 60s. Southeast Winds 5 to 10 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

    75.5 °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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