• Today

    Sep 17

    73°Lo 49°

    Nice with brilliant sunshine

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

    Sep 18

    75°Lo 52°

    Sunny to partly cloudy

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

    Sep 19

    69°Lo 55°

    Partly sunny and nice

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

    Sep 20

    76°Lo 59°

    Partly sunny

    Low ragweed pollen levels
    • Precip
      12%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      29%
    more
  • Sun

    Sep 21

    80°Lo 60°

    Warm with sun and some clouds

    Ragweed Pollen Weather
    • Precip
      19%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      44%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Wed
3am
4am 5am 6am 7am 8am 9am 10am
  3am 4am 5am 6am 7am 8am 9am 10am
Forecast
Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Sunny
Mostly Sunny
Sunny
Sunny
Temp (°F) 53° 51° 50° 49° 50° 53° 58° 62°
RealFeel® 53° 51° 50° 49° 50° 53° 60° 67°
Humidity 82% 83% 84% 85% 83% 78% 69% 57%
   
  3am 4am 5am 6am 7am 8am 9am 10am
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
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Ice
 
0%
 
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  3am 4am 5am 6am 7am 8am 9am 10am
Wind (mph) 2 NW 1 N 1 N 2 N 2 N 2 NNE 2 N 3 W
UV Index 0 0 0 0 0 0 1 3
Cloud Cover 9% 15% 15% 15% 11% 20% 9% 6%
Dew Point 47° 46° 46° 45° 45° 47° 48° 47°
Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F Middle Grid line 50 F Middle Grid line 45 F

Temperature History - Sep 17

more Historical Weather Data >
  Today Normal Record 9/17/2013
High 73° 76° 93° (1991) 65°
Low 49° 56° 38° (1986) 45°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:41 AM with 12:24 of sunlight, then sets at 7:05 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:38 AM with 14:34 of moolight, then sets at 3:12 PM

Top Story

Princeton Weather Report

Philly: Remainder of Week to Be Dry, Cool

September 17, 2014; 7:01 AM ET

Rainfall will be scarce around Philadelphia this week, but cool air will be plentiful. more >

Wed. Pollen

Wed. Dust & Dander

Wed. Wind Maps