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  • Tonight

    Dec 21

    Patchy clouds Lo 26°
  • Mon

    Dec 22

    Cloudy with rain developing 38°Lo 34°
    more
  • Tue

    Dec 23

    Mostly cloudy and damp 46°Lo 42°
    more
  • Wed

    Dec 24

    Rain and a t-storm; warmer 61°Lo 44°
    more
  • Thu

    Dec 25

    Partly sunny and windy 51°Lo 32°
    more
Partly sunny 41° Lo 34° RealFeel® 42° / 34°

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W

  • Precipitation: 0%
  • Rain: 0 in
  • Snow: 0 in
  • Humidity: 52%
  • Cloud Cover: 26%
  • Dew Point: 22° F
  • Visibility: 7 mi
4 mph

Temperature History - Dec 21

more Historical Weather Data >
  Today Normal Record 12/21/2013
High 41° 44° 70° (2013) 70°
Low 26° 26° (1989) 51°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:25 AM with 9:26 of sunlight, then sets at 4:51 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:39 AM with 10:16 of moolight, then sets at 4:55 PM

Herndon Weather Report

DC: Christmas Eve Storm to Affect Holiday Travel This Week

December 21, 2014; 8:10 PM ET

Holiday travel will be at risk across the Washington D.C. area this week as a strong storm takes shape and blasts through the region. more >

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