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  • Today

    Sep 2

    A thunderstorm in spots 92°Lo 68°
  • Wed

    Sep 3

    Clouds giving way to sun 87°Lo 66°
    more
  • Thu

    Sep 4

    Partly sunny, warm and humid 89°Lo 68°
    more
  • Fri

    Sep 5

    Partly sunny and humid 89°Lo 70°
    more
  • Sat

    Sep 6

    A couple of p.m. t-storms 90°Lo 64°
    more
< Previous 8 hours Next 8 hours >
  Tue
1pm
2pm 3pm 4pm 5pm 6pm 7pm 8pm
  1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm
Forecast
Partly Sunny
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Mostly Cloudy
T-storms
Cloudy
Temp (°F) 90° 91° 92° 91° 90° 88° 85° 82°
RealFeel® 98° 98° 97° 94° 91° 89° 85° 84°
Humidity 52% 49% 48% 48% 50% 53% 63% 68%
   
  1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm
Rain
 
9%
 
12%
 
12%
 
16%
 
43%
 
47%
 
51%
 
47%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm
Wind (mph) 6 WSW 7 WSW 7 WSW 7 WSW 8 WSW 7 WSW 7 WSW 6 W
UV Index 6 5 4 3 2 1 0 0
Cloud Cover 47% 62% 63% 66% 69% 75% 83% 90%
Dew Point 70° 70° 70° 69° 69° 69° 71° 71°
Middle Grid line 95 F Middle Grid line 90 F Middle Grid line 85 F Middle Grid line 80 F

Temperature History - Sep 2

more Historical Weather Data >
  Today Normal Record 9/2/2013
High 92° 84° 99° (1980) 91°
Low 68° 61° 44° (1970) 69°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:39 AM with 13:00 of sunlight, then sets at 7:39 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:17 PM with 10:16 of moolight, then sets at 12:33 AM

Top Story

Herndon Weather Report

DC: Warm Week for Back to School, Work

September 2, 2014; 12:55 PM ET

While temperatures and humidity levels will fluctuate slightly from day to day this week, unseasonable warmth will continue into next weekend around Washington, D.C. more >

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