• Today

    Sep 21

    82°Lo 60°

    Clouds breaking for some sun

    Poor for home energy
    • Avg
      RealFeel
      70°
    • Hi
      RealFeel
      86°
    • Wind
      Speed
      3 mph
    more
  • Mon

    Sep 22

    71°Lo 45°

    Mostly sunny and not as warm

    Poor for home energy
    • Avg
      RealFeel
      56°
    • Hi
      RealFeel
      68°
    • Wind
      Speed
      15 mph
  • Tue

    Sep 23

    71°Lo 50°

    Sunny and nice

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

    Sep 24

    72°Lo 52°

    Nice with plenty of sunshine

    Poor for home energy
    • Avg
      RealFeel
      62°
    • Hi
      RealFeel
      73°
    • Wind
      Speed
      6 mph
    more
  • Thu

    Sep 25

    72°Lo 51°

    Mostly sunny and nice

    Poor for home energy
    • Avg
      RealFeel
      63°
    • Hi
      RealFeel
      75°
    • Wind
      Speed
      4 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Mon
4am
5am 6am 7am 8am 9am 10am 11am
  4am 5am 6am 7am 8am 9am 10am 11am
Forecast
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 64° 63° 61° 60° 60° 62° 65° 68°
RealFeel® 62° 60° 57° 54° 55° 57° 61° 65°
Humidity 83% 83% 84% 86% 84% 77% 69% 61%
   
  4am 5am 6am 7am 8am 9am 10am 11am
Rain
 
20%
 
20%
 
20%
 
13%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  4am 5am 6am 7am 8am 9am 10am 11am
Wind (mph) 4 WNW 4 WNW 7 WNW 9 WNW 11 NW 13 NW 14 NW 18 NNW
UV Index 0 0 0 0 0 1 2 4
Cloud Cover 26% 26% 26% 26% 26% 26% 26% 26%
Dew Point 58° 57° 56° 55° 56° 55° 55° 54°
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 71° 74° 97° (1895) 69°
Low 45° 54° 35° (1904) 53°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:46 AM with 12:10 of sunlight, then sets at 6:56 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:13 AM with 12:49 of moolight, then sets at 6:02 PM

Top Story

Princeton Weather Report

Philly: September Temperature Roller Coaster to Continue

September 21, 2014; 4:41 AM ET

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