Potomac River - Fort Washington Light Weather Forecast

    • 69
    • 88

    Partly Sunny

    • 72
    • 89

    Mostly Sunny

    • 69
    • 88

    Rain Showers Likely

    • 68
    • 84

    Rain Showers Likely

    • 68
    • 84

    Chance Rain Showers

    • 66
    • 85

    Chance Rain Showers

Today 18 Aug Prince Georges

Partly sunny. Isolated Showers and Thunderstorms this afternoon. Highs in the upper 80s. North Winds around 5 Mph. Chance of rain 20 percent.

Tonight 18 Aug Prince Georges

Partly cloudy in the Evening, then clearing. Lows in the upper 60s. Northwest Winds around 5 Mph.

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Potomac River - Fort Washington Light Temperature Statistics

August Temperature

Fort Belvoir (7.5 miles)

  • Lowest 1 August, 2026

    65.5 °F

  • Average August

    79.6 °F

  • Highest 8 August, 2026

    92.8 °F

Climate (2021–2026)

Fort Belvoir (7.5 miles)

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  • Average Low 2021–2026

    47.8 °F

  • Average 2021–2026

    58.1 °F

  • Average High 2021–2026

    68.3 °F
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