• Today

    Aug 20

    84°Lo 66°

    A p.m. t-storm in spots

    Good for driving
    • Precip
      50%
    • Hours of Precip
      1.5
    • Rain
      0.15 in
  • Thu

    Aug 21

    87°Lo 68°

    A couple of thunderstorms

    Good for driving
    • Precip
      60%
    • Hours of Precip
      4.5
    • Rain
      0.28 in
    more
  • Fri

    Aug 22

    85°Lo 68°

    A couple of thunderstorms

    Good for driving
    • Precip
      61%
    • Hours of Precip
      5.5
    • Rain
      0.48 in
    more
  • Sat

    Aug 23

    78°Lo 67°

    A shower or two; not as warm

    Good for driving
    • Precip
      60%
    • Hours of Precip
      2
    • Rain
      0.12 in
    more
  • Sun

    Aug 24

    77°Lo 65°

    Times of clouds and sun

    Excellent for driving
    • Precip
      25%
    • Hours of Precip
      0
    • Rain
      0 in
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Wed
7pm
8pm 9pm 10pm 11pm Thu
12am
1am 2am
  7pm 8pm 9pm 10pm 11pm 12am 1am 2am
Forecast
Partly Cloudy
Mostly Cloudy
Mostly Cloudy
T-storms
Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Temp (°F) 80° 78° 75° 74° 72° 71° 70° 69°
RealFeel® 80° 77° 74° 72° 72° 70° 69° 68°
Humidity 65% 71% 77% 81% 83% 85% 88% 91%
   
  7pm 8pm 9pm 10pm 11pm 12am 1am 2am
Rain
 
17%
 
43%
 
47%
 
51%
 
39%
 
33%
 
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) 5 SSE 5 SSE 4 SSE 4 SSE 3 SSE 3 SSE 3 SSE 3 SSE
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 61% 79% 77% 85% 90% 84% 76% 76%
Dew Point 68° 68° 67° 67° 67° 66° 66° 66°
Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F

Temperature History - Aug 20

more Historical Weather Data >
  Today Normal Record 8/20/2013
High 84° 86° 101° (1983) 89°
Low 66° 70° 50° (1896) 69°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:26 AM with 13:31 of sunlight, then sets at 7:57 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:06 AM with 14:33 of moolight, then sets at 4:39 PM

Top Story

Rockville Weather Report

DC: Downpour, Flooding Risk to Increase

August 20, 2014; 12:00 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 >

Travel Weather Forecast

Aug 20, 2014; 1:33 PM ET United States travel weather forecast

Wed. Travel Weather

48 Hour Precipitation Forecast

Wed. Driving Weather