Fairfax Weather Forecast

    • 75
    • 89

    Chance Thunderstorms

    • 76
    • 95

    Chance Thunderstorms

    • 72
    • 88

    Chance Thunderstorms

    • 72
    • 86

    Rain Showers Likely

    • 70
    • 89

    Rain Showers Likely

    • 69
    • 86

    Chance Rain Showers

    • 70
    • 86

    Chance Rain Showers

Today 16 Jul Arlington/Falls Church/Alexandria

Mostly cloudy with a chance of Showers and Thunderstorms. Highs in the lower 90s. South Winds around 10 Mph. Chance of rain 50 percent.

Tonight 16 Jul Arlington/Falls Church/Alexandria

Mostly cloudy. Showers and Thunderstorms Likely, mainly this evening. Some Thunderstorms may produce heavy rainfall this evening. Lows in the mid 70s. Southwest Winds 5 to 10 Mph. Chance of rain 60 percent.

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Fairfax Temperature Statistics

July Temperature

Washington/Dulles International Airport, DC (9.3 miles)

  • Lowest 5 July, 2025

    60.7 °F

  • Average July

    79.1 °F

  • Highest 8 July, 2025

    95.6 °F

Climate (2020–Present)

Washington/Dulles International Airport, DC (9.3 miles)

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  • Average Low 2020–2025

    47.9 °F

  • Average 2020–2025

    58.3 °F

  • Average High 2020–2025

    68.5 °F
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