• Tonight

    Apr 20

    Lo 32°

    Clear and chilly

    Dust & Dander Weather
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
  • Mon

    Apr 21

    74°Lo 44°

    Mostly sunny and pleasant

    Low indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Tue

    Apr 22

    72°Lo 44°

    An afternoon t-storm or two

    Low indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Wed

    Apr 23

    63°Lo 36°

    Partly sunny and breezy

    Low indoor dust & dander levels
    • Precip
      3%
    • Wind
      Speed
      14 mph
    • Cloud
      Cover
      26%
    more
  • Thu

    Apr 24

    69°Lo 49°

    A full day of sunshine

    Low indoor dust & dander levels
    • Precip
      8%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      9%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
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  1am 2am 3am 4am 5am 6am 7am 8am
Forecast
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Sunny
Sunny
Temp (°F) 45° 45° 43° 43° 43° 41° 43° 45°
RealFeel® 40° 42° 39° 38° 39° 37° 40° 44°
Humidity 71% 65% 70% 65% 65% 70% 65% 71%
   
  1am 2am 3am 4am 5am 6am 7am 8am
Rain
 
0%
 
1%
 
1%
 
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0%
Snow
 
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Ice
 
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  1am 2am 3am 4am 5am 6am 7am 8am
Wind (mph) 6 N 5 N 5 NNE 6 NNE 5 N 5 NNE 5 NE 5 NE
UV Index 0 0 0 0 0 0 0 1
Cloud Cover 90% 90% 90% 90% 90% 60% 0% 0%
Dew Point 36° 34° 34° 32° 32° 32° 32° 36°
Middle Grid line 50 F Middle Grid line 45 F Middle Grid line 40 F

Temperature History - Apr 20

more Historical Weather Data >
  Today Normal Record 4/20/2013
High 64° 70° N/A 57°
Low 32° 46° N/A 37°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:26 AM with 13:26 of sunlight, then sets at 7:52 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:30 AM with 10:14 of moolight, then sets at 10:44 AM

Top Story

Frederick Weather Report

DC: Temperatures to Remain on a Roller Coaster Ride

April 20, 2014; 8:25 PM ET

Temperatures will remain on the spring roller coaster ride this week in Washington, D.C. more >

Is it a Cold or the Flu?

Apr 19, 2014; 5:00 AM ET Symptoms caused by the common cold can often resemble those associated with the influenza virus, so how do you differentiate between the two?

Sun. Pollen

Sun. Dust & Dander

Sun. Wind Maps