• Today

    Sep 4

    84°Lo 63°

    A shower or t-storm in spots

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
  • Sat

    Sep 5

    81°Lo 57°

    Turning sunny and less humid

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Sun

    Sep 6

    84°Lo 59°

    Plenty of sunshine

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Mon

    Sep 7

    87°Lo 63°

    Sunny and very warm

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Tue

    Sep 8

    91°Lo 67°

    Mostly sunny and hot

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Fri
6am
7am 8am 9am 10am 11am 12pm 1pm
  6am 7am 8am 9am 10am 11am 12pm 1pm
Forecast
Partly Cloudy
Partly Sunny
Partly Cloudy
Partly Sunny
Partly Cloudy
Mostly Cloudy
T-storms
Partly Cloudy
Temp (°F) 70° 72° 73° 76° 79° 80° 82° 83°
RealFeel® 70° 73° 74° 80° 83° 86° 86° 90°
Humidity 89% 83% 84% 76% 70% 70% 69% 66%
   
  6am 7am 8am 9am 10am 11am 12pm 1pm
Rain
 
32%
 
26%
 
18%
 
18%
 
23%
 
47%
 
51%
 
47%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  6am 7am 8am 9am 10am 11am 12pm 1pm
Wind (mph) 4 NNE 5 NNE 7 NE 6 NE 8 ENE 9 ENE 9 ENE 10 ENE
UV Index 0 0 0 2 2 3 4 4
Cloud Cover 30% 37% 70% 47% 74% 78% 70% 65%
Dew Point 66° 67° 68° 68° 69° 70° 71° 71°
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 - Sep 4

more Historical Weather Data >
  Today Normal Record 9/4/2014
High 84° 80° 95° (1929) 87°
Low 63° 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; 9:45 AM 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 >

Fri. Pollen

Fri. Dust & Dander

Fri. Wind Maps