• Today

    Apr 21

    65°Lo 43°

    Breezy with clouds and sun

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
  • Wed

    Apr 22

    65°Lo 38°

    Mostly cloudy, p.m. t-showers

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more
  • Thu

    Apr 23

    54°Lo 35°

    Cooler with clouds and sun

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more
  • Fri

    Apr 24

    57°Lo 42°

    Breezy with periods of sun

    Low ragweed pollen levels
    • Precip
      10%
    • Wind
      Speed
      15 mph
    • Cloud
      Cover
      54%
    more
  • Sat

    Apr 25

    63°Lo 43°

    Mostly cloudy

    Ragweed Pollen Weather
    • Precip
      12%
    • Wind
      Speed
      13 mph
    • Cloud
      Cover
      76%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Tue
1pm
2pm 3pm 4pm 5pm 6pm 7pm 8pm
  1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm
Forecast
Partly Sunny
Partly Sunny
Partly Sunny
Partly Sunny
Partly Sunny
Partly Sunny
Partly Sunny
Clear
Temp (°F) 63° 64° 65° 65° 64° 63° 61° 58°
RealFeel® 64° 64° 65° 65° 63° 61° 59° 57°
Humidity 37% 34% 32% 31% 31% 32% 35% 38%
   
  1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm
Rain
 
22%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
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0%
 
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0%
   
  1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm
Wind (mph) 15 WNW 17 WNW 16 WNW 15 W 14 W 10 W 8 WSW 6 WSW
UV Index 6 6 5 3 2 1 0 0
Cloud Cover 46% 46% 46% 46% 46% 46% 46% 2%
Dew Point 36° 35° 34° 34° 33° 33° 33° 32°
Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F

Temperature History - Apr 21

more Historical Weather Data >
  Today Normal Record 4/21/2014
High 65° 63° 87° (1985) 69°
Low 43° 43° 30° (1925) 33°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:12 AM with 13:32 of sunlight, then sets at 7:44 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:27 AM with 14:36 of moolight, then sets at 11:03 PM

Princeton Weather Report

Philadelphia: Cooler Air to Sweep Away Warmth This Week

April 21, 2015; 6:04 AM ET

Cooler air will push into the Philadelphia area during the middle and latter part of the week. more >

Tue. Pollen

Tue. Dust & Dander

Tue. Wind Maps