Potomac River - Fort Washington Light Weather Forecast

    • 59
    • 67

    Rain Likely

    • 60
    • 66

    Rain Likely

    • 61
    • 72

    Mostly Cloudy

    • 62
    • 75

    Partly Sunny

    • 63
    • 80

    Partly Sunny

    • 66
    • 82

    Partly Sunny

    • 64
    • 81

    Partly Sunny

Today 26 Sep Prince Georges

Rain. Highs in the mid 60s. North Winds around 15 Mph with Gusts up to 30 Mph. Chance of rain 80 percent.

Tonight 26 Sep Prince Georges

Cloudy. Rain, mainly in the evening. Lows in the upper 50s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 80 percent.

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Potomac River - Fort Washington Light Temperature Statistics

September Temperature

Fort Belvoir (7.5 miles)

  • Lowest 24 September, 2026

    53.4 °F

  • Average September

    73.5 °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

    68.3 °F
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