• Today

    Jul 11

    84°Lo 65°

    Partly sunny

    Beneficial weather for migraines
    • Hi
      RealFeel
      90°
    • UV
      8 - Very High
    • Cloud
      Cover
      42%
  • Sat

    Jul 12

    87°Lo 68°

    Partly sunny

    Beneficial weather for migraines
    • Hi
      RealFeel
      91°
    • UV
      8 - Very High
    • Cloud
      Cover
      28%
    more
  • Sun

    Jul 13

    90°Lo 72°

    A stray afternoon t-storm

    Neutral weather for migraines
    • Hi
      RealFeel
      93°
    • UV
      8 - Very High
    • Cloud
      Cover
      39%
    more
  • Mon

    Jul 14

    87°Lo 71°

    Showers and a heavier t-storm

    Beneficial weather for migraines
    • Hi
      RealFeel
      95°
    • UV
      6 - High
    • Cloud
      Cover
      69%
    more
  • Tue

    Jul 15

    84°Lo 63°

    A couple of heavy t-storms

    Beneficial weather for migraines
    • Hi
      RealFeel
      94°
    • UV
      6 - High
    • Cloud
      Cover
      77%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Fri
2am
3am 4am 5am 6am 7am 8am 9am
  2am 3am 4am 5am 6am 7am 8am 9am
Forecast
Mostly Clear
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Sunny
Partly Sunny
Partly Sunny
Partly Sunny
Temp (°F) 68° 67° 66° 65° 64° 67° 66° 68°
RealFeel® 66° 65° 64° 63° 64° 65° 67° 72°
Humidity 90% 89% 89% 93% 96% 90% 95% 89%
   
  2am 3am 4am 5am 6am 7am 8am 9am
Rain
 
32%
 
32%
 
31%
 
29%
 
29%
 
22%
 
7%
 
7%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  2am 3am 4am 5am 6am 7am 8am 9am
Wind (mph) 3 NE 3 NNW 2 NNW 3 NNW 3 NNW 3 NNW 4 N 4 NE
UV Index 0 0 0 0 0 0 1 3
Cloud Cover 27% 47% 45% 36% 33% 43% 31% 41%
Dew Point 65° 63° 63° 63° 63° 63° 64° 65°
Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F

Temperature History - Jul 11

more Historical Weather Data >
  Today Normal Record 7/11/2013
High 84° 88° 98° (1988) 87°
Low 65° 66° 52° (1983) 69°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:53 AM with 14:43 of sunlight, then sets at 8:36 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 7:45 PM with 10:25 of moolight, then sets at 6:10 AM

Top Story

Herndon Weather Report

DC: Severe Storm, Flooding Threat to Precede Cooldown

July 11, 2014; 4:03 PM ET

After only spotty rainfall this weekend in the Washington, D.C., area, the risk of severe thunderstorms and flash flooding will ramp up quickly early next week. more >

Battling the Common Cold

Jun 23, 2014; 5:00 AM ET Marja Martinez talks about identifying and fighting the common cold.

Fri. Migraine Headache

Fri. UV Index