Potomac River - Four Mile Run Entrance Weather Forecast

    • 72
    • 91

    Rain Showers

    • 70
    • 84

    Partly Sunny

    • 69
    • 89

    Mostly Sunny

    • 69
    • 88

    Mostly Sunny

    • 72
    • 90

    Partly Sunny

    • 75
    • 93

    Slight Chance Thunderstorms

Today 1 Jul Arlington/Falls Church/Alexandria

Mostly sunny with a chance of Showers with a slight chance of Thunderstorms in the Morning, then mostly cloudy with Showers with Thunderstorms likely in the afternoon. Highs in the lower 90s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 80 percent.

Tonight 1 Jul Arlington/Falls Church/Alexandria

Partly cloudy with a slight chance of Showers and Thunderstorms. Lows in the mid 70s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 20 percent.

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Potomac River - Four Mile Run Entrance Temperature Statistics

July Temperature

Washington/Reagan National Airport, DC (0.6 miles)

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  • Average July

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Climate (2020–Present)

Washington/Reagan National Airport, DC (0.6 miles)

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  • Average Low 2020–2025

    52.7 °F

  • Average 2020–2025

    60.5 °F

  • Average High 2020–2025

    69.2 °F
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