Potomac River - Four Mile Run Entrance Weather Forecast

    • 74
    • 83

    Rain Showers

    • 70
    • 86

    Rain Showers Likely

    • 71
    • 86

    Slight Chance Rain Showers

    • 74
    • 88

    Chance Thunderstorms

    • 75
    • 91

    Chance Thunderstorms

    • 75
    • 91

    Chance Thunderstorms

    • 74
    • 90

    Chance Thunderstorms

Today 2 Aug Arlington/Falls Church/Alexandria

Showers likely with a chance of Thunderstorms. Highs in the mid 80s. Southeast Winds around 10 Mph with Gusts up to 20 Mph. Chance of rain 70 percent.

Tonight 2 Aug Arlington/Falls Church/Alexandria

A chance of Thunderstorms. Showers, mainly in the evening. Patchy fog after midnight. Lows in the lower 70s. South Winds 5 to 10 Mph. Chance of rain 90 percent.

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Potomac River - Four Mile Run Entrance Temperature Statistics

August Temperature

Washington/Reagan National Airport, DC (0.6 miles)

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  • Average August

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Climate (2021–2026)

Washington/Reagan National Airport, DC (0.6 miles)

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  • Average Low 2021–2026

    52.4 °F

  • Average 2021–2026

    60.5 °F

  • Average High 2021–2026

    69.3 °F
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