• Early AM

    Apr 18

    Lo 33°

    Increasing clouds

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

    Apr 18

    59°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

    66°Lo 36°

    Partly sunny

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

    Apr 20

    67°Lo 34°

    Mostly sunny

    Low indoor dust & dander levels
    • Precip
      9%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      11%
    more
  • Mon

    Apr 21

    71°Lo 43°

    Partly sunny and nice

    Low indoor dust & dander levels
    • Precip
      8%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      51%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Fri
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3am 4am 5am 6am 7am 8am 9am
  2am 3am 4am 5am 6am 7am 8am 9am
Forecast
Clear
Mostly Clear
Partly Cloudy
Partly Cloudy
Cloudy
Partly Cloudy
Partly Sunny
Partly Sunny
Temp (°F) 36° 34° 33° 33° 33° 34° 40° 42°
RealFeel® 39° 36° 35° 35° 34° 34° 41° 47°
Humidity 92% 94% 92% 92% 89% 85% 77% 71%
   
  2am 3am 4am 5am 6am 7am 8am 9am
Rain
 
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Snow
 
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Ice
 
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  2am 3am 4am 5am 6am 7am 8am 9am
Wind (mph) 0 1 ESE 1 ESE 1 ENE 2 NNE 2 NE 2 NE 3 E
UV Index 0 0 0 0 0 0 1 2
Cloud Cover 0% 14% 30% 46% 62% 73% 37% 45%
Dew Point 34° 32° 31° 31° 30° 30° 33° 34°
Middle Grid line 45 F 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 59° 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