• Today

    Dec 20

    41°Lo 27°

    Some sun, then clouds

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
  • Sun

    Dec 21

    45°Lo 29°

    Partly sunny

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Mon

    Dec 22

    43°Lo 34°

    A little afternoon rain

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Tue

    Dec 23

    51°Lo 48°

    Mainly cloudy and damp

    Low ragweed pollen levels
    • Precip
      49%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      94%
    more
  • Wed

    Dec 24

    61°Lo 40°

    Breezy and mild with rain

    Ragweed Pollen Weather
    • Precip
      75%
    • Wind
      Speed
      17 mph
    • Cloud
      Cover
      99%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sat
8pm
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12am
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  8pm 9pm 10pm 11pm 12am 1am 2am 3am
Forecast
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Temp (°F) 30° 29° 29° 28° 28° 29° 28° 27°
RealFeel® 32° 31° 31° 31° 31° 31° 32° 31°
Humidity 66% 70% 70% 71% 72% 71% 73% 76%
   
  8pm 9pm 10pm 11pm 12am 1am 2am 3am
Rain
 
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0%
Snow
 
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Ice
 
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  8pm 9pm 10pm 11pm 12am 1am 2am 3am
Wind (mph) 1 N 1 NNW 1 NW 1 NW 1 NW 1 NW 0 0
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 46% 46% 46% 46% 53% 65% 70% 70%
Dew Point 20° 20° 20° 20° 20° 20° 20° 20°
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 27° 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 20, 2014; 4:11 AM ET

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

Sat. Pollen

Sat. Dust & Dander

Sat. Wind Maps