• Today

    Sep 1

    86°Lo 68°

    An afternoon thunderstorm

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

    Sep 2

    93°Lo 67°

    A thunderstorm in spots

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

    Sep 3

    86°Lo 59°

    Sunny, warm and less humid

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

    Sep 4

    85°Lo 63°

    Mostly sunny and warm

    Low ragweed pollen levels
    • Precip
      5%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      11%
    more
  • Fri

    Sep 5

    88°Lo 67°

    Sunny and remaining warm

    Ragweed Pollen Weather
    • Precip
      14%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      9%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Mon
7am
8am 9am 10am 11am 12pm 1pm 2pm
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Forecast
Cloudy
Cloudy
Mostly Cloudy
Mostly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Temp (°F) 70° 73° 75° 76° 79° 82° 83° 84°
RealFeel® 72° 77° 80° 83° 88° 92° 92° 93°
Humidity 93% 92% 88% 82% 77% 72% 69% 66%
   
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Rain
 
28%
 
25%
 
25%
 
24%
 
20%
 
20%
 
25%
 
44%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Wind (mph) 2 NNW 2 NNW 2 NNW 3 NW 3 WNW 4 W 5 WSW 5 WSW
UV Index 0 0 1 2 3 4 4 4
Cloud Cover 95% 99% 89% 80% 72% 71% 73% 72%
Dew Point 68° 70° 71° 71° 71° 72° 71° 71°
Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F

Temperature History - Sep 1

more Historical Weather Data >
  Today Normal Record 9/1/2013
High 86° 81° 97° (2010) 87°
Low 68° 62° 50° (1986) 71°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:26 AM with 13:05 of sunlight, then sets at 7:31 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:10 PM with 10:18 of moolight, then sets at 11:28 PM

Top Story

Princeton Weather Report

Philly: Storms, Steambath in Store for Labor Day

September 1, 2014; 4:10 AM ET

The weather will not fully cooperate for Labor Day festivities around Philadelphia on Monday. more >

Mon. Pollen

Mon. Dust & Dander

Mon. Wind Maps