Fairfax Weather Forecast

    • 18
    • 31

    Chance Snow

    • 29
    • 36

    Partly Sunny

    • 33
    • 48

    Mostly Cloudy

    • 27
    • 42

    Mostly Cloudy

    • 23
    • 40

    Mostly Cloudy

    • 19
    • 34

    Partly Sunny

Today 8 Dec Arlington/Falls Church/Alexandria

Cloudy with a 40 percent chance of snow. Highs in the lower 30s. Northeast Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 8 Dec Arlington/Falls Church/Alexandria

Cloudy. Lows around 30. North Winds 5 to 10 Mph with Gusts up to 20 Mph.

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Fairfax Temperature Statistics

December Temperature

Washington/Dulles International Airport, DC (9.3 miles)

  • Lowest 4 December, 2025

    21.9 °F

  • Average December

    33.9 °F

  • Highest 1 December, 2025

    44.1 °F

Climate (2020–Present)

Washington/Dulles International Airport, DC (9.3 miles)

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  • Average Low 2020–2025

    47.7 °F

  • Average 2020–2025

    58.2 °F

  • Average High 2020–2025

    68.5 °F
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