• Tonight

    Apr 18

    Lo 40°

    Clouds breaking

    Dust & Dander Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
  • Sat

    Apr 19

    66°Lo 37°

    Turning sunny and warmer

    Moderate indoor dust & dander levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Sun

    Apr 20

    60°Lo 37°

    Partly sunny

    Moderate indoor dust & dander levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Mon

    Apr 21

    68°Lo 44°

    Sun and areas of high clouds

    Low indoor dust & dander levels
    • Precip
      6%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      51%
    more
  • Tue

    Apr 22

    69°Lo 48°

    A shower in the afternoon

    Low indoor dust & dander levels
    • Precip
      51%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      78%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Fri
7am
8am 9am 10am 11am 12pm 1pm 2pm
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Forecast
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Mostly Cloudy
Mostly Cloudy
Temp (°F) 33° 36° 38° 40° 44° 46° 47° 49°
RealFeel® 29° 33° 37° 40° 48° 53° 57° 59°
Humidity 85% 79% 72% 62% 59% 55% 50% 45%
   
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
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  7am 8am 9am 10am 11am 12pm 1pm 2pm
Wind (mph) 5 ESE 5 E 5 ESE 5 E 5 ESE 5 NNE 4 S 4 SE
UV Index 0 0 1 2 3 5 5 5
Cloud Cover 91% 92% 97% 96% 95% 93% 88% 85%
Dew Point 29° 30° 30° 28° 30° 31° 29° 29°
Middle Grid line 50 F Middle Grid line 45 F Middle Grid line 40 F Middle Grid line 35 F Middle Grid line 30 F

Temperature History - Apr 18

more Historical Weather Data >
  Today Normal Record 4/18/2013
High 53° 62° 93° (1976) 61°
Low 40° 42° 30° (1928) 49°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:16 AM with 13:24 of sunlight, then sets at 7:40 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:24 PM with 10:07 of moolight, then sets at 9:31 AM

Top Story

Princeton Weather Report

Philly: Milder Weather Arrives with Easter Weekend

April 18, 2014; 4:40 PM ET

The recent stretch of cool weather in Philadelphia will depart for Easter weekend. more >

Is it a Cold or the Flu?

Apr 7, 2014; 5:00 AM ET Symptoms caused by the common cold can often resemble those associated with the influenza virus, so how do you differentiate between the two?

Fri. Pollen

Fri. Dust & Dander

Fri. Wind Maps