• Tonight

    Dec 19

    Lo 27°

    Mainly clear

    Running Weather
    • Precip
      1%
    • Hours of Precip
      0
    • Wind
      Gust
      21 mph
    more
  • Sat

    Dec 20

    41°Lo 26°

    Mostly cloudy

    Good for running
    • Precip
      3%
    • Hours of Precip
      0
    • Wind
      Gust
      4 mph
  • Sun

    Dec 21

    44°Lo 29°

    Partly sunny

    Very Good for running
    • Precip
      4%
    • Hours of Precip
      0
    • Wind
      Gust
      4 mph
    more
  • Mon

    Dec 22

    44°Lo 38°

    Cloudy with afternoon rain

    Fair for running
    • Precip
      82%
    • Hours of Precip
      9
    • Wind
      Gust
      9 mph
    more
  • Tue

    Dec 23

    52°Lo 47°

    Cloudy with a little rain

    Fair for running
    • Precip
      57%
    • Hours of Precip
      8.5
    • Wind
      Gust
      7 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sat
3am
4am 5am 6am 7am 8am 9am 10am
  3am 4am 5am 6am 7am 8am 9am 10am
Forecast
Mostly Clear
Mostly Clear
Mostly Clear
Partly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Cloudy
Temp (°F) 30° 29° 30° 30° 29° 31° 33° 36°
RealFeel® 30° 29° 30° 30° 30° 32° 35° 39°
Humidity 65% 65% 63% 62% 63% 60% 56% 52%
   
  3am 4am 5am 6am 7am 8am 9am 10am
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
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  3am 4am 5am 6am 7am 8am 9am 10am
Wind (mph) 2 NW 2 NNW 2 NNW 2 NNW 2 NNW 2 NNW 2 NNW 2 NNW
UV Index 0 0 0 0 0 0 0 1
Cloud Cover 24% 26% 26% 44% 76% 79% 88% 90%
Dew Point 19° 19° 19° 18° 18° 19° 19° 20°
Middle Grid line 40 F Middle Grid line 35 F Middle Grid line 30 F Middle Grid line 25 F

Temperature History - Dec 20

more Historical Weather Data >
  Today Normal Record 12/20/2013
High 41° 44° N/A 48°
Low 26° 29° N/A 32°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:26 AM with 9:23 of sunlight, then sets at 4:49 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:40 AM with 10:18 of moolight, then sets at 3:58 PM

Frederick Weather Report

DC: Quiet Weekend Weather to be Followed by Christmas Eve Storm

December 19, 2014; 2:11 PM ET

Following benign weather this weekend, a major storm will affect Washington, D.C., much of the East and Midwest on Christmas Eve. more >

Avoid the Winter Workout Blues

Dec 26, 2012; 5:00 AM ET When it's snowing or cold, most of us want nothing more than to keep warm on the couch. But Violeta Yas has some tips to help you sneak in mini workouts at the office, regardless of the weather.