• Today

    Sep 5

    82°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
  • Mon

    Sep 7

    88°Lo 64°

    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 70°

    Mostly sunny and hot

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

    Sep 9

    91°Lo 68°

    A p.m. t-storm possible

    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 >
  Sun
2am
3am 4am 5am 6am 7am 8am 9am
  2am 3am 4am 5am 6am 7am 8am 9am
Forecast
Mostly Clear
Clear
Clear
Clear
Clear
Sunny
Sunny
Sunny
Temp (°F) 61° 60° 59° 57° 58° 60° 62° 67°
RealFeel® 62° 61° 60° 58° 59° 61° 64° 69°
Humidity 92% 91% 92% 100% 93% 97% 89% 80%
   
  2am 3am 4am 5am 6am 7am 8am 9am
Rain
 
0%
 
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0%
 
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0%
Snow
 
0%
 
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0%
Ice
 
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  2am 3am 4am 5am 6am 7am 8am 9am
Wind (mph) 2 NNE 2 N 2 N 2 NNW 2 N 2 N 2 NNE 2 NNE
UV Index 0 0 0 0 0 0 1 2
Cloud Cover 10% 6% 2% 0% 0% 0% 0% 0%
Dew Point 58° 57° 56° 57° 56° 59° 59° 60°
Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F

Temperature History - Sep 6

more Historical Weather Data >
  Today Normal Record 9/6/2014
High 84° 80° 99° (1983) 91°
Low 59° 60° 44° (1984) 66°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:31 AM with 12:52 of sunlight, then sets at 7:23 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:25 AM with 14:39 of moolight, then sets at 3:04 PM

Princeton Weather Report

Philadelphia: Heat to Rebuild on Labor Day After Cooldown

September 5, 2015; 6:42 AM ET

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

Sun. Pollen

Sun. Dust & Dander

Sun. Wind Maps