• Today

    Dec 21

    40°Lo 27°

    Clouds giving way to some sun

    Good for skiing
    • Rain
      0 in
    • Precip
      4%
    • Hours of Precip
      0
  • Mon

    Dec 22

    43°Lo 37°

    Turning cloudy

    Good for skiing
    • Rain
      0 in
    • Precip
      13%
    • Hours of Precip
      0
    more
  • Tue

    Dec 23

    47°Lo 44°

    Mainly cloudy and damp; fog

    Poor for skiing
    • Rain
      0.03 in
    • Precip
      47%
    • Hours of Precip
      2
    more
  • Wed

    Dec 24

    58°Lo 41°

    Windy with rain

    Poor for skiing
    • Rain
      0.55 in
    • Precip
      79%
    • Hours of Precip
      8.5
    more
  • Thu

    Dec 25

    45°Lo 29°

    Windy and colder

    Poor for skiing
    • Rain
      0 in
    • Precip
      25%
    • Hours of Precip
      0
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
10am
11am 12pm 1pm 2pm 3pm 4pm 5pm
  10am 11am 12pm 1pm 2pm 3pm 4pm 5pm
Forecast
Partly Sunny
Partly Sunny
Partly Cloudy
Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Clear
Temp (°F) 34° 36° 37° 40° 38° 38° 38° 36°
RealFeel® 34° 36° 37° 40° 38° 38° 38° 36°
Humidity 62% 56% 49% 44% 47% 48% 49% 53%
   
  10am 11am 12pm 1pm 2pm 3pm 4pm 5pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  10am 11am 12pm 1pm 2pm 3pm 4pm 5pm
Wind (mph) 5 WNW 6 WNW 6 WNW 6 WNW 6 WNW 5 NW 2 NW 2 NW
UV Index 1 1 2 2 1 0 0 0
Cloud Cover 40% 46% 52% 8% 14% 20% 26% 26%
Dew Point 22° 22° 20° 20° 20° 20° 20° 20°
Middle Grid line 45 F Middle Grid line 40 F Middle Grid line 35 F Middle Grid line 30 F

Temperature History - Dec 21

more Historical Weather Data >
  Today Normal Record 12/21/2013
High 40° 40° 61° (2011) 59°
Low 27° 25° (1942) 34°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:23 AM with 9:18 of sunlight, then sets at 4:41 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:36 AM with 10:10 of moolight, then sets at 4:46 PM

Mohnton Weather Report

Philly: Quiet Weekend Weather to be Followed by Christmas Eve Storm

December 21, 2014; 4:16 AM ET

Following benign weather this weekend, a major storm will affect Philadelphia, much of the East and Midwest on Christmas Eve. more >

Tourism of Doom: Traveling to Endangered Places

Aug 30, 2012; 5:00 AM ET If you're longing to ski the Alps or swim in the Great Barrier Reef, you may be running out of time. A changing climate may beat you to the punch line. Valerie Smock has more.

Radar & Satellite

48 Hour Precipitation Forecast

Sun. Ski Weather