Arlington Weather Forecast

    • 73
    • 88

    Rain Showers Likely

    • 74
    • 92

    Chance Thunderstorms

    • 73
    • 91

    Chance Thunderstorms

    • 73
    • 91

    Chance Thunderstorms

    • 74
    • 90

    Partly Sunny

    • 75
    • 93

    Slight Chance Thunderstorms

Today 5 Aug Arlington/Falls Church/Alexandria

Patchy fog in the morning. Showers likely. A slight chance of Thunderstorms in the Morning, then a chance of Thunderstorms in the afternoon. Highs in the mid 80s. East Winds around 5 Mph, becoming south in the afternoon. Chance of rain 70 percent.

Tonight 5 Aug Arlington/Falls Church/Alexandria

Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms. Lows in the lower 70s. East Winds around 5 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Arlington Temperature Statistics

August Temperature

Washington/Reagan National Airport, DC (4.3 miles)

  • Lowest 1 August, 2026

    71.7 °F

  • Average August

    79.6 °F

  • Highest 1 August, 2026

    90.6 °F

Climate (2021–2026)

Washington/Reagan National Airport, DC (4.3 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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