• Tonight

    Apr 17

    Lo 33°

    Increasing cloudiness

    Asthma Weather
    • Hi
      RealFeel
      50°
    • UV
      6 - High
    • Air Qual.
      Good
    more
  • Fri

    Apr 18

    54°Lo 39°

    Variable cloudiness

    Beneficial weather for asthma
    • Hi
      RealFeel
      57°
    • UV
      4 - Moderate
    • Air Qual.
      Good
  • Sat

    Apr 19

    66°Lo 38°

    Mostly sunny and warmer

    Beneficial weather for asthma
    • Hi
      RealFeel
      65°
    • UV
      6 - High
    • Air Qual.
      Good
    more
  • Sun

    Apr 20

    63°Lo 39°

    Periods of sun

    Beneficial weather for asthma
    • Hi
      RealFeel
      67°
    • UV
      6 - High
    • Cloud
      Cover
      46%
    more
  • Mon

    Apr 21

    66°Lo 44°

    Partial sunshine

    Beneficial weather for asthma
    • Hi
      RealFeel
      69°
    • UV
      6 - High
    • Cloud
      Cover
      45%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Fri
4am
5am 6am 7am 8am 9am 10am 11am
  4am 5am 6am 7am 8am 9am 10am 11am
Forecast
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Mostly Cloudy
Mostly Cloudy
Cloudy
Temp (°F) 33° 34° 33° 34° 37° 40° 42° 46°
RealFeel® 29° 30° 29° 30° 34° 38° 42° 47°
Humidity 78% 78% 78% 75% 71% 65% 57% 51%
   
  4am 5am 6am 7am 8am 9am 10am 11am
Rain
 
0%
 
0%
 
0%
 
0%
 
1%
 
1%
 
1%
 
1%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
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  4am 5am 6am 7am 8am 9am 10am 11am
Wind (mph) 5 NE 5 NE 5 NE 5 NE 5 NE 6 ENE 6 ENE 6 ENE
UV Index 0 0 0 0 0 1 2 3
Cloud Cover 95% 95% 95% 95% 90% 89% 89% 90%
Dew Point 27° 27° 27° 27° 29° 29° 28° 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 54° 62° 93° (1976) 61°
Low 39° 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 to Come Easter Weekend

April 17, 2014; 8:50 PM ET

The return of milder air to Philadelphia will coincide with this coming 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. Air Quality

Fri. Asthma Risk

Fri. UV Index