• Early AM

    Aug 1

    Lo 66°

    Clear

    Home Energy Efficiency Weather
    • Avg
      RealFeel
      78°
    • Hi
      RealFeel
      91°
    • Wind
      Speed
      5 mph
    more
  • Today

    Aug 1

    88°Lo 62°

    Sun mixing with clouds; warm

    Poor for home energy
    • Avg
      RealFeel
      76°
    • Hi
      RealFeel
      90°
    • Wind
      Speed
      5 mph
  • Sun

    Aug 2

    88°Lo 70°

    Mostly sunny

    Poor for home energy
    • Avg
      RealFeel
      80°
    • Hi
      RealFeel
      91°
    • Wind
      Speed
      6 mph
    more
  • Mon

    Aug 3

    92°Lo 69°

    Partly sunny, hot and humid

    Poor for home energy
    • Avg
      RealFeel
      80°
    • Hi
      RealFeel
      93°
    • Wind
      Speed
      8 mph
    more
  • Tue

    Aug 4

    86°Lo 65°

    A thunderstorm in spots

    Poor for home energy
    • Avg
      RealFeel
      76°
    • Hi
      RealFeel
      88°
    • Wind
      Speed
      5 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sat
3am
4am 5am 6am 7am 8am 9am 10am
  3am 4am 5am 6am 7am 8am 9am 10am
Forecast
Clear
Clear
Mostly Clear
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Sunny
Temp (°F) 69° 68° 68° 66° 69° 73° 77° 80°
RealFeel® 67° 66° 66° 64° 68° 74° 80° 84°
Humidity 71% 72% 75% 79% 71% 70% 65% 55%
   
  3am 4am 5am 6am 7am 8am 9am 10am
Rain
 
1%
 
1%
 
1%
 
1%
 
1%
 
1%
 
1%
 
1%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  3am 4am 5am 6am 7am 8am 9am 10am
Wind (mph) 4 WSW 5 WSW 5 SW 5 SW 5 WSW 5 WSW 6 WSW 7 WSW
UV Index 0 0 0 0 0 1 3 4
Cloud Cover 9% 9% 10% 11% 12% 10% 10% 8%
Dew Point 60° 59° 60° 60° 60° 63° 64° 62°
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 1

more Historical Weather Data >
  Today Normal Record 8/1/2014
High 88° 85° 99° (2002) 81°
Low 62° 66° 54° (1895) 67°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:55 AM with 14:20 of sunlight, then sets at 8:15 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:15 PM with 11:04 of moolight, then sets at 7:19 AM

Princeton Weather Report

Philadelphia: Hot, Dry Weather to Last Through Weekend

July 31, 2015; 10:24 PM ET

High pressure will be responsible for dry conditions and sunny skies in the forecast for the next several days. 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.

Sat. Home Energy Efficiency

Sat. Degree Days

Sat. UV Index