• Today

    Sep 30

    76°Lo 57°

    Low clouds, then some sun

    Poor for home energy
    • Avg
      RealFeel
      68°
    • Hi
      RealFeel
      78°
    • Wind
      Speed
      3 mph
  • Wed

    Oct 1

    74°Lo 55°

    Cloudy with a shower in spots

    Poor for home energy
    • Avg
      RealFeel
      66°
    • Hi
      RealFeel
      77°
    • Wind
      Speed
      3 mph
    more
  • Thu

    Oct 2

    73°Lo 60°

    Clouds and sun

    Poor for home energy
    • Avg
      RealFeel
      66°
    • Hi
      RealFeel
      74°
    • Wind
      Speed
      4 mph
    more
  • Fri

    Oct 3

    74°Lo 55°

    An afternoon thunderstorm

    Poor for home energy
    • Avg
      RealFeel
      61°
    • Hi
      RealFeel
      72°
    • Wind
      Speed
      7 mph
    more
  • Sat

    Oct 4

    65°Lo 44°

    A shower in the area

    Poor for home energy
    • Avg
      RealFeel
      52°
    • Hi
      RealFeel
      63°
    • Wind
      Speed
      10 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Tue
12pm
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Forecast
Mostly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Sunny
Partly Cloudy
Temp (°F) 71° 72° 74° 75° 76° 75° 73° 69°
RealFeel® 73° 76° 78° 77° 76° 73° 70° 66°
Humidity 73% 68% 63% 60% 58% 60% 65% 75%
   
  12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm
Rain
 
0%
 
0%
 
1%
 
1%
 
2%
 
3%
 
3%
 
6%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
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0%
Ice
 
0%
 
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  12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm
Wind (mph) 2 S 3 ESE 3 SSE 3 SE 4 SE 4 SE 4 SE 3 ESE
UV Index 3 4 4 3 2 1 0 0
Cloud Cover 87% 73% 56% 61% 64% 61% 45% 46%
Dew Point 62° 61° 60° 60° 60° 60° 61° 61°
Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F

Temperature History - Sep 30

more Historical Weather Data >
  Today Normal Record 9/30/2013
High 76° 74° 91° (1986) 76°
Low 57° 57° 38° (1942) 56°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:03 AM with 11:50 of sunlight, then sets at 6:53 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:08 PM with 10:15 of moolight, then sets at 11:23 PM

Top Story

Rockville Weather Report

DC: Rain, Storms to Kick Off Weekend

September 30, 2014; 3:02 PM ET

After relatively benign weather much of this week, a cool front will approach the Washington, D.C., area late Friday with the potential for drenching showers and thunderstorms. more >

Energy Efficient Lightbulbs and S.A.D

Sep 8, 2012; 5:00 AM ET With shorter days and colder nights in the fall and winter, some people develop seasonal affective disorder. When shopping for lightbulbs to treat the 'winter blues,'consider energy-efficient bulbs.

Tue. Home Energy Efficiency

Tue. Degree Days

Tue. UV Index