• Today

    Sep 17

    73°Lo 50°

    Nice with plenty of sunshine

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

    Sep 18

    75°Lo 51°

    Sunny to partly cloudy

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

    Sep 19

    69°Lo 53°

    Partly sunny and nice

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

    Sep 20

    77°Lo 60°

    Partly sunny

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

    Sep 21

    81°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 >
  Thu
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Forecast
Clear
Clear
Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 51° 50° 52° 55° 59° 63° 68° 71°
RealFeel® 51° 50° 52° 55° 61° 67° 71° 76°
Humidity 88% 91% 90% 85% 75% 65% 57% 52%
   
  5am 6am 7am 8am 9am 10am 11am 12pm
Rain
 
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Snow
 
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Ice
 
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  5am 6am 7am 8am 9am 10am 11am 12pm
Wind (mph) 2 NW 2 NW 2 WNW 2 NW 3 NNW 3 NNW 4 N 4 NNW
UV Index 0 0 0 0 1 3 4 5
Cloud Cover 7% 5% 2% 10% 10% 10% 10% 10%
Dew Point 48° 48° 50° 50° 51° 51° 52° 52°
Middle Grid line 75 F Middle Grid line 70 F 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 18

more Historical Weather Data >
  Today Normal Record 9/18/2013
High 75° 75° 90° (1965) 71°
Low 51° 56° 39° (1986) 41°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:42 AM with 12:21 of sunlight, then sets at 7:03 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:32 AM with 14:20 of moolight, then sets at 3:52 PM

Top Story

Princeton Weather Report

Philly: Remainder of Week to Be Dry, Cool

September 17, 2014; 3:01 AM ET

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

Thu. Pollen

Thu. Dust & Dander

Thu. Wind Maps