• Early AM

    Dec 20

    Lo 28°

    Partly cloudy

    Ragweed Pollen Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Today

    Dec 20

    41°Lo 27°

    Mainly cloudy

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

    Dec 21

    45°Lo 30°

    Partly sunny

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

    Dec 22

    44°Lo 40°

    Cloudy, afternoon rain

    Low ragweed pollen levels
    • Precip
      90%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      93%
    more
  • Tue

    Dec 23

    54°Lo 47°

    Cloudy with occasional rain

    Ragweed Pollen Weather
    • Precip
      55%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      97%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sat
1am
2am 3am 4am 5am 6am 7am 8am
  1am 2am 3am 4am 5am 6am 7am 8am
Forecast
Mostly Clear
Mostly Clear
Partly Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Mostly Cloudy
Temp (°F) 31° 30° 30° 30° 29° 28° 28° 29°
RealFeel® 29° 28° 28° 28° 28° 27° 28° 29°
Humidity 66% 67% 68% 70% 71% 72% 71% 68%
   
  1am 2am 3am 4am 5am 6am 7am 8am
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
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  1am 2am 3am 4am 5am 6am 7am 8am
Wind (mph) 5 NNW 5 NNW 5 NNW 5 NNW 4 NNW 4 NNW 4 NNW 4 NNW
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 11% 25% 40% 53% 65% 68% 70% 80%
Dew Point 21° 21° 21° 21° 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° 45° 66° (1889) 60°
Low 27° 31° (1942) 44°

Sunrise/Sunset

Sunrise / Sunset Illustration

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

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:38 AM with 10:20 of moolight, then sets at 3:58 PM

Cabin John 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 >

Sat. Pollen

Sat. Dust & Dander

Sat. Wind Maps