• Early AM

    Sep 17

    Lo 49°

    Clear

    Ragweed Pollen Weather
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      0 - Low
    more
  • 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
    • Precip
      7%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      26%
    more
  • Sat

    Sep 20

    77°Lo 60°

    Partly sunny

    Low ragweed pollen levels
    • Precip
      12%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      29%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Thu
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 59° 63° 68° 71° 71° 72° 73° 75°
RealFeel® 61° 67° 71° 76° 77° 77° 76° 75°
Humidity 75% 65% 57% 52% 49% 46% 44% 43%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
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0%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 3 NNW 3 NNW 4 N 4 NNW 5 NNW 5 NW 5 NW 5 NW
UV Index 1 3 4 5 5 5 4 3
Cloud Cover 10% 10% 10% 10% 10% 26% 26% 26%
Dew Point 51° 51° 52° 52° 51° 51° 51° 51°
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 Middle Grid line 55 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