• Tonight

    Dec 17

    Lo 31°

    Increasingly windy

    Ragweed Pollen Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
  • Thu

    Dec 18

    44°Lo 30°

    Partly sunny and windy

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

    Dec 19

    41°Lo 25°

    Sun mixing with clouds

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

    Dec 20

    39°Lo 31°

    Some sun, then clouds

    Low ragweed pollen levels
    • Precip
      25%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      62%
    more
  • Sun

    Dec 21

    42°Lo 33°

    Clouds giving way to some sun

    Ragweed Pollen Weather
    • Precip
      25%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      66%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Wed
8am
9am 10am 11am 12pm 1pm 2pm 3pm
  8am 9am 10am 11am 12pm 1pm 2pm 3pm
Forecast
Partly Sunny
Partly Sunny
Partly Cloudy
Partly Cloudy
Mostly Cloudy
Cloudy
Cloudy
Cloudy
Temp (°F) 41° 43° 46° 49° 49° 50° 50° 48°
RealFeel® 39° 40° 43° 44° 44° 43° 42° 39°
Humidity 84% 79% 71% 66% 62% 59% 58% 59%
   
  8am 9am 10am 11am 12pm 1pm 2pm 3pm
Rain
 
2%
 
2%
 
2%
 
2%
 
1%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  8am 9am 10am 11am 12pm 1pm 2pm 3pm
Wind (mph) 5 NW 7 WNW 8 NW 9 WNW 12 WNW 13 WNW 13 WNW 14 WNW
UV Index 0 0 1 1 1 1 0 0
Cloud Cover 43% 46% 72% 69% 79% 93% 97% 97%
Dew Point 37° 37° 37° 38° 37° 36° 35° 34°
Middle Grid line 55 F Middle Grid line 50 F Middle Grid line 45 F Middle Grid line 40 F

Temperature History - Dec 17

more Historical Weather Data >
  Today Normal Record 12/17/2013
High 50° 42° 66° (2000) 30°
Low 31° 27° (1919) 20°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:16 AM with 9:18 of sunlight, then sets at 4:34 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:26 AM with 11:10 of moolight, then sets at 1:36 PM

Princeton Weather Report

Philly: Spotty Wintry Weather This Weekend to be Paled by Major Storm Next Week

December 17, 2014; 4:06 PM ET

After a weak storm brings spotty light snow and rain to the region this weekend, a storm will threaten major travel disruptions around Philadelphia before Christmas. more >

Wed. Pollen

Wed. Dust & Dander

Wed. Wind Maps