• Tonight

    Aug 21

    Lo 66°

    A heavy evening thunderstorm

    Ragweed Pollen Weather
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Fri

    Aug 22

    84°Lo 67°

    Couple of thunderstorms

    Low ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Sat

    Aug 23

    78°Lo 61°

    A brief shower or two

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

    Aug 24

    80°Lo 57°

    Areas of fog in the morning

    Low ragweed pollen levels
    • Precip
      11%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      70%
    more
  • Mon

    Aug 25

    81°Lo 59°

    Partly sunny

    Ragweed Pollen Weather
    • Precip
      7%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      26%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sat
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Cloudy
Showers
Showers
Cloudy
Cloudy
Cloudy
Cloudy
Showers
Temp (°F) 69° 71° 73° 74° 76° 78° 76° 76°
RealFeel® 70° 72° 75° 78° 80° 82° 80° 79°
Humidity 94% 88% 84% 83% 79% 74% 78% 78%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
47%
 
51%
 
51%
 
47%
 
43%
 
43%
 
47%
 
51%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 5 NE 5 NE 5 ENE 5 ENE 5 ENE 5 ENE 5 ENE 5 ENE
UV Index 1 1 2 2 2 2 2 2
Cloud Cover 90% 91% 92% 94% 96% 95% 92% 86%
Dew Point 67° 67° 68° 69° 69° 69° 69° 69°
Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F

Temperature History - Aug 23

more Historical Weather Data >
  Today Normal Record 8/23/2013
High 78° 86° N/A 73°
Low 61° 66° N/A 57°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:30 AM with 13:25 of sunlight, then sets at 7:55 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:45 AM with 13:53 of moolight, then sets at 6:38 PM

Top Story

Frederick Weather Report

DC: Downpour, Flooding Risk to Increase

August 21, 2014; 12:10 PM ET

A wedge of dry air will slowly erode at midweek and will allow drenching showers and thunderstorms to survive the trip into Washington, D.C., from the Midwest. more >

Sat. Dust & Dander

Sat. Wind Maps