Potomac River - Dangerfield Island Weather Forecast

    • 68
    • 81

    Chance Rain Showers

    • 66
    • 82

    Mostly Sunny

    • 65
    • 82

    Mostly Sunny

    • 68
    • 83

    Partly Sunny

    • 69
    • 86

    Partly Sunny

    • 72
    • 88

    Slight Chance Rain Showers

Today 6 Aug Arlington/Falls Church/Alexandria

Cloudy. A slight chance of Showers late this Morning, then a chance of Showers this afternoon. Highs in the lower 80s. East Winds 5 to 10 Mph. Chance of rain 30 percent.

Tonight 6 Aug Arlington/Falls Church/Alexandria

Mostly cloudy with a chance of Showers in the Evening, then partly cloudy after midnight. Lows in the upper 60s. East Winds 5 to 10 Mph. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Potomac River - Dangerfield Island Temperature Statistics

August Temperature

Washington/Reagan National Airport, DC (1.2 miles)

  • Lowest 3 August, 2025

    64 °F

  • Average August

    74.3 °F

  • Highest 4 August, 2025

    86 °F

Climate (2020–Present)

Washington/Reagan National Airport, DC (1.2 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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