• Today

    Sep 1

    90°Lo 68°

    Hot and humid with sunshine

    Poor for skiing
    • Rain
      0 in
    • Precip
      0%
    • Hours of Precip
      0
  • Wed

    Sep 2

    91°Lo 67°

    Mostly sunny, hot and humid

    Poor for skiing
    • Rain
      0 in
    • Precip
      8%
    • Hours of Precip
      0
    more
  • Thu

    Sep 3

    92°Lo 69°

    A thunderstorm in spots

    Poor for skiing
    • Rain
      0.04 in
    • Precip
      40%
    • Hours of Precip
      0.5
    more
  • Fri

    Sep 4

    83°Lo 61°

    Partly sunny and not as hot

    Poor for skiing
    • Rain
      0 in
    • Precip
      25%
    • Hours of Precip
      0
    more
  • Sat

    Sep 5

    81°Lo 55°

    Mostly sunny

    Poor for skiing
    • Rain
      0 in
    • Precip
      6%
    • Hours of Precip
      0
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Tue
10pm
11pm Wed
12am
1am 2am 3am 4am 5am
  10pm 11pm 12am 1am 2am 3am 4am 5am
Forecast
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Temp (°F) 75° 74° 72° 71° 70° 70° 69° 69°
RealFeel® 77° 76° 73° 73° 72° 71° 70° 71°
Humidity 78% 80% 81% 87% 89% 89% 87% 90%
   
  10pm 11pm 12am 1am 2am 3am 4am 5am
Rain
 
2%
 
2%
 
2%
 
1%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  10pm 11pm 12am 1am 2am 3am 4am 5am
Wind (mph) 5 SSE 5 SSE 5 SSE 4 SSE 4 S 4 S 2 SSE 2 SSE
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 11% 11% 11% 11% 11% 11% 11% 11%
Dew Point 68° 68° 66° 67° 67° 66° 65° 66°
Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F

Temperature History - Sep 1

more Historical Weather Data >
  Today Normal Record 9/1/2014
High 90° 81° 97° (2010) 87°
Low 68° 62° 50° (1986) 72°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:26 AM with 13:05 of sunlight, then sets at 7:31 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 9:26 PM with 13:30 of moolight, then sets at 10:56 AM

Princeton Weather Report

Philadelphia: Sizzling Heat Wave to Start September

September 1, 2015; 2:01 AM ET

July-like heat and humidity will continue around Philadelphia for the first week of September. more >

Tourism of Doom: Traveling to Endangered Places

Aug 30, 2012; 5:00 AM ET If you're longing to ski the Alps or swim in the Great Barrier Reef, you may be running out of time. A changing climate may beat you to the punch line. Valerie Smock has more.

Radar & Satellite

48 Hour Precipitation Forecast

Tue. Ski Weather