• Today

    Jan 29

    33°Lo 29°

    Some sun, then clouds

    Good for home energy
    • Avg
      RealFeel
      30°
    • Hi
      RealFeel
      35°
    • Wind
      Speed
      4 mph
    more
  • Fri

    Jan 30

    36°Lo 11°

    Flurries; becoming windier

    Good for home energy
    • Avg
      RealFeel
    • Hi
      RealFeel
      24°
    • Wind
      Speed
      15 mph
    more
  • Sat

    Jan 31

    24°Lo 15°

    Sunny, breezy and colder

    Very Good for home energy
    • Avg
      RealFeel
    • Hi
      RealFeel
      10°
    • Wind
      Speed
      15 mph
    more
  • Sun

    Feb 1

    33°Lo 14°

    Partly sunny and not as cold

    Good for home energy
    • Avg
      RealFeel
      13°
    • Hi
      RealFeel
      29°
    • Wind
      Speed
      8 mph
  • Mon

    Feb 2

    22°Lo 4°

    Cloudy, snow possible; colder

    Excellent for home energy
    • Avg
      RealFeel
      -2°
    • Hi
      RealFeel
    • Wind
      Speed
      16 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Partly Cloudy
Partly Cloudy
Mostly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Mostly Cloudy
Mostly Cloudy
Temp (°F) 22° 25° 28° 30° 33° 32° 30° 28°
RealFeel® 17° 22° 25° 27° 29° 26° 24° 23°
Humidity 80% 76% 69% 64% 60% 63% 67% 72%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
1%
 
1%
 
1%
 
2%
 
3%
 
3%
 
3%
 
3%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 7 W 7 W 7 W 8 W 8 WNW 8 WNW 8 NW 7 NNW
UV Index 1 1 2 2 2 1 0 0
Cloud Cover 57% 72% 75% 72% 70% 74% 82% 89%
Dew Point 17° 18° 19° 19° 20° 20° 20° 20°
Middle Grid line 35 F Middle Grid line 30 F Middle Grid line 25 F Middle Grid line 20 F

Temperature History - Feb 1

more Historical Weather Data >
  Today Normal Record 2/1/2014
High 33° 40° 67° (2012) 47°
Low 14° 24° -3° (1920) 28°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:08 AM with 10:09 of sunlight, then sets at 5:17 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:32 PM with 14:24 of moolight, then sets at 5:56 AM

Princeton Weather Report

Philly: Cold, Wintry Weather to Persist Into Weekend

January 29, 2015; 5:44 AM ET

Colder-than-average temperatures will hold around Philadelphia into the weekend as a couple of storm systems approach. 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.

Sun. Home Energy Efficiency

Sun. Degree Days

Sun. UV Index