• Today

    Sep 20

    81°Lo 54°

    Mostly sunny and warmer

    Poor for home energy
    • Avg
      RealFeel
      68°
    • Hi
      RealFeel
      81°
    • Wind
      Speed
      6 mph
    more
  • Sun

    Sep 21

    80°Lo 54°

    A t-storm in the afternoon

    Poor for home energy
    • Avg
      RealFeel
      66°
    • Hi
      RealFeel
      80°
    • Wind
      Speed
      6 mph
    more
  • Mon

    Sep 22

    67°Lo 41°

    Clouds and sun; not as warm

    Poor for home energy
    • Avg
      RealFeel
      54°
    • Hi
      RealFeel
      67°
    • Wind
      Speed
      7 mph
  • Tue

    Sep 23

    69°Lo 45°

    Partly sunny

    Poor for home energy
    • Avg
      RealFeel
      60°
    • Hi
      RealFeel
      73°
    • Wind
      Speed
      3 mph
    more
  • Wed

    Sep 24

    73°Lo 47°

    Sunny and pleasant

    Poor for home energy
    • Avg
      RealFeel
      61°
    • Hi
      RealFeel
      75°
    • Wind
      Speed
      3 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Mon
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Sunny
Temp (°F) 58° 59° 61° 63° 65° 65° 67° 66°
RealFeel® 55° 57° 60° 63° 65° 65° 67° 65°
Humidity 76% 71% 65% 60% 56% 53% 49% 51%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
20%
 
20%
 
20%
 
20%
 
13%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 6 WNW 7 WNW 8 WNW 8 WNW 9 WNW 10 WNW 9 WNW 8 WNW
UV Index 1 1 2 3 3 4 3 2
Cloud Cover 86% 82% 77% 73% 70% 65% 57% 47%
Dew Point 50° 49° 49° 49° 49° 48° 48° 47°
Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F

Temperature History - Sep 22

more Historical Weather Data >
  Today Normal Record 9/22/2013
High 67° 72° 89° (1914) 66°
Low 41° 48° 30° (1999) 47°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:04 AM with 12:10 of sunlight, then sets at 7:14 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:32 AM with 12:48 of moolight, then sets at 6:20 PM

Top Story

Petersburg Weather Report

DC: September Temperature Roller Coaster to Continue

September 20, 2014; 2:04 AM ET

In keeping with tradition, temperatures will continue their up-and-down cycle during the second half of September around Washington, D.C. 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.

Mon. Home Energy Efficiency

Mon. Degree Days

Mon. UV Index