• Tonight

    Apr 17

    Lo 33°

    Some clouds; cold

    Dust & Dander Weather
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Fri

    Apr 18

    58°Lo 38°

    Some sun, then clouds

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

    Apr 19

    69°Lo 37°

    Partly sunny and warmer

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

    Apr 20

    66°Lo 36°

    Intervals of clouds and sun

    Low indoor dust & dander levels
    • Precip
      4%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      46%
    more
  • Mon

    Apr 21

    74°Lo 43°

    Some sun

    Low indoor dust & dander levels
    • Precip
      11%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      45%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Fri
1am
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  1am 2am 3am 4am 5am 6am 7am 8am
Forecast
Partly Cloudy
Cloudy
Cloudy
Mostly Cloudy
Cloudy
Cloudy
Cloudy
Partly Sunny
Temp (°F) 36° 36° 34° 33° 34° 33° 34° 38°
RealFeel® 36° 36° 34° 33° 34° 33° 34° 40°
Humidity 81% 82% 84% 86% 87% 86% 83% 78%
   
  1am 2am 3am 4am 5am 6am 7am 8am
Rain
 
0%
 
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Snow
 
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Ice
 
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  1am 2am 3am 4am 5am 6am 7am 8am
Wind (mph) 3 ESE 2 NE 2 NE 2 NE 2 NNE 2 NNE 2 NE 2 NE
UV Index 0 0 0 0 0 0 0 1
Cloud Cover 41% 90% 90% 89% 90% 91% 92% 45%
Dew Point 31° 31° 30° 29° 30° 30° 29° 32°
Middle Grid line 40 F Middle Grid line 35 F Middle Grid line 30 F

Temperature History - Apr 18

more Historical Weather Data >
  Today Normal Record 4/18/2013
High 58° 69° N/A 75°
Low 38° 46° N/A 57°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:29 AM with 13:21 of sunlight, then sets at 7:50 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:33 PM with 10:11 of moolight, then sets at 9:44 AM

Top Story

Frederick Weather Report

DC: Turn to Milder Weather Into Easter Weekend

April 17, 2014; 1:00 PM ET

The return of noticeably milder air to Washington, D.C., will coincide with this Easter weekend. more >

Is it a Cold or the Flu?

Apr 7, 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?

Fri. Pollen

Fri. Dust & Dander

Fri. Wind Maps