• Tonight

    Aug 20

    Lo 65°

    An evening shower or t-storm

    Common Cold Weather
    • Avg
      Temp
      75°
    • Avg
      RealFeel
      77°
    • Hi
      RealFeel
      90°
    more
  • Thu

    Aug 21

    88°Lo 67°

    Couple of showers, t-storms

    Beneficial weather for colds
    • Avg
      Temp
      78°
    • Avg
      RealFeel
      81°
    • Hi
      RealFeel
      95°
  • Fri

    Aug 22

    84°Lo 68°

    A couple of thunderstorms

    Beneficial weather for colds
    • Avg
      Temp
      76°
    • Avg
      RealFeel
      80°
    • Hi
      RealFeel
      93°
    more
  • Sat

    Aug 23

    78°Lo 66°

    A shower or two; not as warm

    Beneficial weather for colds
    • Avg
      Temp
      72°
    • Avg
      RealFeel
      73°
    • Hi
      RealFeel
      83°
    more
  • Sun

    Aug 24

    78°Lo 62°

    Times of clouds and sun

    Beneficial weather for colds
    • Avg
      Temp
      70°
    • Avg
      RealFeel
      70°
    • Hi
      RealFeel
      80°
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Thu
7am
8am 9am 10am 11am 12pm 1pm 2pm
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Forecast
Mostly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Temp (°F) 66° 70° 74° 77° 81° 84° 85° 86°
RealFeel® 65° 72° 78° 84° 90° 94° 94° 94°
Humidity 93% 92% 82% 73% 65% 59% 54% 51%
   
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Rain
 
18%
 
15%
 
15%
 
15%
 
15%
 
15%
 
19%
 
46%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Wind (mph) 2 SSE 2 S 2 SW 3 WSW 3 W 3 W 4 W 4 WSW
UV Index 0 1 2 3 5 5 6 5
Cloud Cover 76% 70% 70% 70% 70% 70% 70% 70%
Dew Point 64° 67° 68° 68° 68° 68° 67° 67°
Middle Grid line 90 F 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 21

more Historical Weather Data >
  Today Normal Record 8/21/2013
High 88° 86° 100° (1874) 89°
Low 67° 69° 53° (1908) 73°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:27 AM with 13:29 of sunlight, then sets at 7:56 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:57 AM with 14:25 of moolight, then sets at 5:22 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 >

Natural Ways To Combat Colds and Flu

Nov 30, 2012; 5:00 AM ET Flu season is here and will stick around until May. Here are a few natural remedies to ease pain and suffering.

Thu. Cold & Flu

Thu. UV Index