• Tonight

    Sep 4

    Lo 64°

    Patchy clouds

    Running Weather
    • Precip
      35%
    • Hours of Precip
      0
    • Wind
      Gust
      22 mph
  • Sat

    Sep 5

    81°Lo 57°

    Turning sunny and less humid

    Excellent for running
    • Precip
      2%
    • Hours of Precip
      0
    • Wind
      Gust
      9 mph
    more
  • Sun

    Sep 6

    84°Lo 60°

    Plenty of sunshine

    Very Good for running
    • Precip
      8%
    • Hours of Precip
      0
    • Wind
      Gust
      6 mph
    more
  • Mon

    Sep 7

    87°Lo 64°

    Sunny and very warm

    Excellent for running
    • Precip
      6%
    • Hours of Precip
      0
    • Wind
      Gust
      9 mph
    more
  • Tue

    Sep 8

    91°Lo 68°

    Mostly sunny and hot

    Very Good for running
    • Precip
      7%
    • Hours of Precip
      0
    • Wind
      Gust
      9 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Fri
10pm
11pm Sat
12am
1am 2am 3am 4am 5am
  10pm 11pm 12am 1am 2am 3am 4am 5am
Forecast
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Temp (°F) 71° 70° 69° 69° 68° 67° 66° 66°
RealFeel® 71° 69° 68° 67° 66° 64° 64° 63°
Humidity 83% 83% 83% 85% 84% 80% 79% 79%
   
  10pm 11pm 12am 1am 2am 3am 4am 5am
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
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Ice
 
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  10pm 11pm 12am 1am 2am 3am 4am 5am
Wind (mph) 8 ESE 7 E 7 E 7 ENE 7 ENE 7 ENE 7 NE 7 NE
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 46% 46% 46% 46% 10% 10% 10% 10%
Dew Point 66° 65° 64° 64° 63° 61° 59° 59°
Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F

Temperature History - Sep 4

more Historical Weather Data >
  Today Normal Record 9/4/2014
High 84° 80° 95° (1929) 87°
Low 64° 61° 47° (1997) 60°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:29 AM with 12:57 of sunlight, then sets at 7:26 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:36 PM with 14:33 of moolight, then sets at 2:09 PM

Princeton Weather Report

Philadelphia: Heat to Rebuild Labor Day Weekend After Cooldown

September 4, 2015; 7:15 PM ET

A backdoor front will trim temperatures, haze and humidity around Philadelphia early this weekend before all three conditions build by early next week. more >

Avoid the Winter Workout Blues

Dec 26, 2012; 5:00 AM ET When it's snowing or cold, most of us want nothing more than to keep warm on the couch. But Violeta Yas has some tips to help you sneak in mini workouts at the office, regardless of the weather.