• Today

    Sep 21

    86°Lo 57°

    A thunderstorm this afternoon

    Moderate ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      30 - Moderate
    • Tree
      Pollen
      0 - Low
  • Mon

    Sep 22

    73°Lo 45°

    Partly sunny; breezy, cooler

    Moderate ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      30 - Moderate
    • Tree
      Pollen
      0 - Low
    more
  • Tue

    Sep 23

    72°Lo 50°

    Mostly sunny and pleasant

    Moderate ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      30 - Moderate
    • Tree
      Pollen
      0 - Low
    more
  • Wed

    Sep 24

    75°Lo 52°

    Sunny and pleasant

    Moderate ragweed pollen levels
    • Precip
      8%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      0%
    more
  • Thu

    Sep 25

    74°Lo 52°

    Partly sunny and pleasant

    Ragweed Pollen Weather
    • Precip
      11%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      41%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
7pm
8pm 9pm 10pm 11pm Mon
12am
1am 2am
  7pm 8pm 9pm 10pm 11pm 12am 1am 2am
Forecast
Partly Cloudy
T-storms
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Temp (°F) 79° 73° 69° 68° 67° 65° 64° 63°
RealFeel® 77° 70° 66° 65° 63° 62° 61° 60°
Humidity 67% 77% 82% 84% 84% 83% 82% 80%
   
  7pm 8pm 9pm 10pm 11pm 12am 1am 2am
Rain
 
19%
 
51%
 
47%
 
39%
 
32%
 
32%
 
36%
 
43%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  7pm 8pm 9pm 10pm 11pm 12am 1am 2am
Wind (mph) 6 WSW 5 WSW 5 W 5 W 5 W 5 WNW 5 WNW 5 WNW
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 70% 28% 27% 26% 26% 27% 29% 26%
Dew Point 67° 65° 63° 63° 62° 59° 59° 57°
Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F

Temperature History - Sep 21

more Historical Weather Data >
  Today Normal Record 9/21/2013
High 86° 78° N/A 73°
Low 57° 57° N/A 57°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:56 AM with 12:13 of sunlight, then sets at 7:09 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:29 AM with 13:14 of moolight, then sets at 5:43 PM

Top Story

Frederick Weather Report

DC: September Temperature Roller Coaster to Continue

September 21, 2014; 4:44 AM ET

In keeping with tradition, temperatures will continue their up-and-down cycle during the second half of September around Washington, D.C. more >

Sun. Pollen

Sun. Dust & Dander

Sun. Wind Maps