• Today

    Sep 21

    82°Lo 60°

    Areas of morning fog

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

    Sep 22

    71°Lo 45°

    Mostly sunny and not as warm

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

    Sep 23

    71°Lo 50°

    Sunny and nice

    Low ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Wed

    Sep 24

    72°Lo 52°

    Nice with plenty of sunshine

    Low ragweed pollen levels
    • Precip
      6%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      1%
    more
  • Thu

    Sep 25

    72°Lo 51°

    Partly sunny and pleasant

    Ragweed Pollen Weather
    • Precip
      7%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      26%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
4am
5am 6am 7am 8am 9am 10am 11am
  4am 5am 6am 7am 8am 9am 10am 11am
Forecast
Mostly Cloudy
Cloudy
Cloudy
Mostly Cloudy
Fog
Fog
Fog
Showers
Temp (°F) 65° 64° 64° 65° 64° 68° 71° 75°
RealFeel® 65° 65° 64° 65° 66° 68° 73° 79°
Humidity 93% 93% 93% 93% 92% 87% 80% 74%
   
  4am 5am 6am 7am 8am 9am 10am 11am
Rain
 
5%
 
6%
 
6%
 
8%
 
14%
 
14%
 
18%
 
40%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  4am 5am 6am 7am 8am 9am 10am 11am
Wind (mph) 2 N 2 SE 2 NW 2 NW 2 NW 2 WNW 2 W 3 SW
UV Index 0 0 0 0 0 1 2 3
Cloud Cover 89% 90% 91% 84% 100% 100% 94% 86%
Dew Point 63° 62° 62° 63° 62° 64° 65° 66°
Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F

Temperature History - Sep 21

more Historical Weather Data >
  Today Normal Record 9/21/2013
High 82° 74° 96° (1895) 80°
Low 60° 54° 40° (1962) 51°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:45 AM with 12:13 of sunlight, then sets at 6:58 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:16 AM with 13:17 of moolight, then sets at 5:33 PM

Top Story

Princeton Weather Report

Philly: September Temperature Roller Coaster to Continue

September 21, 2014; 4:41 AM ET

In keeping with tradition, temperatures will continue their up-and-down cycle during the second half of September around Philadelphia. more >

Sun. Pollen

Sun. Dust & Dander

Sun. Wind Maps