• 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
    more
  • Sun

    Dec 21

    45°Lo 29°

    Partly sunny

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
  • 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
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  1am 2am 3am 4am 5am 6am 7am 8am
Forecast
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Partly Cloudy
Mostly Clear
Mostly Sunny
Temp (°F) 29° 28° 27° 29° 28° 29° 30° 31°
RealFeel® 31° 32° 31° 33° 32° 33° 32° 34°
Humidity 71% 73% 76% 70% 72% 69% 67% 65%
   
  1am 2am 3am 4am 5am 6am 7am 8am
Rain
 
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  1am 2am 3am 4am 5am 6am 7am 8am
Wind (mph) 1 NW 0 0 0 0 0 1 N 1 NNW
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 65% 70% 70% 65% 53% 46% 26% 26%
Dew Point 20° 20° 20° 20° 20° 20° 20° 21°
Middle Grid line 35 F Middle Grid line 30 F Middle Grid line 25 F

Temperature History - Dec 21

more Historical Weather Data >
  Today Normal Record 12/21/2013
High 45° 43° N/A 66°
Low 29° 29° N/A 36°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:26 AM with 9:24 of sunlight, then sets at 4:50 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:40 AM with 10:14 of moolight, then sets at 4:54 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 >

Sun. Pollen

Sun. Dust & Dander

Sun. Wind Maps