Washington Dulles International Airport Weather Forecast

    • 50
    • 78

    Sunny

    • 49
    • 74

    Sunny

    • 56
    • 80

    Mostly Sunny

    • 59
    • 86

    Mostly Sunny

    • 65
    • 88

    Mostly Cloudy

    • 63
    • 87

    Mostly Sunny

    • 59
    • 82

    Mostly Sunny

Today 19 Sep Eastern Loudoun

Sunny. Highs in the lower 70s. East Winds around 5 Mph.

Tonight 19 Sep Eastern Loudoun

Mostly clear. Lows in the lower 50s. Light and variable Winds.

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Washington Dulles International Airport Temperature Statistics

September Temperature

Washington/Dulles International Airport, DC (0.6 miles)

  • Lowest 7 September, 2019

    55.9 °F
  • Average September

    73.8 °F
  • Highest 12 September, 2019

    93.9 °F

Climate (2010–Present)

Washington/Dulles International Airport, DC (0.6 miles)

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  • Average Low 2010–Present

    48 °F
  • Average 2010–Present

    57.7 °F
  • Average High 2010–Present

    67.1 °F
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