• Today

    Dec 20

    37°Lo 25°

    Cloudy

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

    Dec 21

    41°Lo 26°

    Partly sunny

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
  • Mon

    Dec 22

    44°Lo 36°

    Turning cloudy

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

    Dec 23

    48°Lo 45°

    Mostly cloudy with mist

    Low ragweed pollen levels
    • Precip
      57%
    • Wind
      Speed
      14 mph
    • Cloud
      Cover
      94%
    more
  • Wed

    Dec 24

    60°Lo 42°

    Windy and milder with rain

    Ragweed Pollen Weather
    • Precip
      81%
    • Wind
      Speed
      20 mph
    • Cloud
      Cover
      99%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
6am
7am 8am 9am 10am 11am 12pm 1pm
  6am 7am 8am 9am 10am 11am 12pm 1pm
Forecast
Cloudy
Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Sunny
Partly Sunny
Partly Sunny
Temp (°F) 28° 28° 30° 32° 36° 39° 40° 41°
RealFeel® 28° 28° 30° 33° 38° 42° 44° 44°
Humidity 76% 75% 71% 65% 58% 53% 49% 47%
   
  6am 7am 8am 9am 10am 11am 12pm 1pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
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Ice
 
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  6am 7am 8am 9am 10am 11am 12pm 1pm
Wind (mph) 2 NNW 4 NNW 4 NNW 4 NNW 2 NNW 4 NNW 4 NNW 4 NNW
UV Index 0 0 0 0 1 1 2 1
Cloud Cover 94% 70% 70% 68% 53% 46% 46% 46%
Dew Point 21° 21° 22° 22° 23° 23° 23° 22°
Middle Grid line 45 F Middle Grid line 40 F Middle Grid line 35 F Middle Grid line 30 F Middle Grid line 25 F

Temperature History - Dec 21

more Historical Weather Data >
  Today Normal Record 12/21/2013
High 41° 41° 68° (1895) 64°
Low 26° 26° -2° (1942) 39°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:18 AM with 9:17 of sunlight, then sets at 4:35 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:31 AM with 10:09 of moolight, then sets at 4:40 PM

Princeton Weather Report

Philly: Quiet Weekend Weather to be Followed by Christmas Eve Storm

December 20, 2014; 4:10 AM ET

Following benign weather this weekend, a major storm will affect Philadelphia, much of the East and Midwest on Christmas Eve. more >

Sun. Pollen

Sun. Dust & Dander

Sun. Wind Maps