• Tonight

    Aug 26

    Lo 69°

    Mainly clear and humid

    Stargazing Weather
    • Cloud
      Cover
      16%
    • Precip
      12%
    • Hours of Precip
      0
  • Sat

    Aug 27

    91°Lo 66°

    Mostly sunny and hot

    Excellent for stargazing
    • Cloud
      Cover
      11%
    • Precip
      14%
    • Hours of Precip
      0
    more
  • Sun

    Aug 28

    89°Lo 65°

    Mostly sunny and humid

    Excellent for stargazing
    • Cloud
      Cover
      14%
    • Precip
      10%
    • Hours of Precip
      0
    more
  • Mon

    Aug 29

    91°Lo 66°

    A t-storm around in the p.m.

    Good for stargazing
    • Cloud
      Cover
      46%
    • Precip
      25%
    • Hours of Precip
      0.5
    more
  • Tue

    Aug 30

    92°Lo 70°

    A p.m. t-storm in spots

    Excellent for stargazing
    • Cloud
      Cover
      22%
    • Precip
      18%
    • Hours of Precip
      1
    more
Next Previous
Next 8 hours >
  Fri
9pm
10pm 11pm Sat
12am
1am 2am 3am 4am
  9pm 10pm 11pm 12am 1am 2am 3am 4am
Forecast
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Clear
Clear
Temp (°F) 82° 80° 79° 77° 76° 74° 72° 71°
RealFeel® 85° 84° 83° 80° 79° 77° 74° 72°
Humidity 63% 71% 74% 76% 82% 84% 84% 83%
   
  9pm 10pm 11pm 12am 1am 2am 3am 4am
Rain
 
1%
 
1%
 
1%
 
1%
 
1%
 
2%
 
2%
 
2%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  9pm 10pm 11pm 12am 1am 2am 3am 4am
Wind (mph) 4 NNW 4 N 4 N 4 N 4 N 4 NNW 4 NNW 4 NNW
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 27% 27% 25% 19% 14% 10% 8% 9%
Dew Point 69° 70° 70° 69° 70° 69° 67° 66°
Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F

Temperature History - Aug 26

more Historical Weather Data >
  Today Normal Record 8/26/2015
High 94° 86° 95° (2016) 79°
Low 69° 63° 48° (1977) 61°

Solunar Information for Herndon, VA

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:34 AM with 13:14 of sunlight, then sets at 7:48 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:58 AM with 14:32 of moolight, then sets at 3:30 PM

Thu, Sep 1
New
Fri, Sep 9
First
Fri, Sep 16
Full
Fri, Sep 23
Last

Herndon Weather Report

Is summer heat, humidity over for the northeastern US?

August 26, 2016; 4:55 PM ET

Following a taste of autumn chill to start the week, is summer heat and humidity over for the northeastern United States? more >

'Frankenfish' Ready for Market

Dec 7, 2012; 7:08 AM ET A new lab-created meat is waiting for FDA approval that is at once very different and just the same as your favorite fish dinner.

Fri. Stargazing