• Today

    Jan 31

    25°Lo 16°

    Sunny, breezy and colder

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
  • Sun

    Feb 1

    34°Lo 29°

    Mostly cloudy and not as cold

    Very Unlikely for a snow day
    • Snow
      20%
    • Ice
      1%
    • Snow
      0 in
    more
  • Mon

    Feb 2

    36°Lo 11°

    Snow and sleet tapering off

    Likely for a snow day
    • Snow
      57%
    • Ice
      69%
    • Snow
      2.36 in
    more
  • Tue

    Feb 3

    20°Lo 12°

    Partly sunny and colder

    Possibly for a snow day
    • Snow
      6%
    • Ice
      0%
    • Snow
      0 in
    more
  • Wed

    Feb 4

    39°Lo 23°

    Mostly cloudy and not as cold

    Very Unlikely for a snow day
    • Snow
      12%
    • Ice
      0%
    • Snow
      0 in
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sat
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7pm 8pm 9pm 10pm 11pm Sun
12am
1am
  6pm 7pm 8pm 9pm 10pm 11pm 12am 1am
Forecast
Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Temp (°F) 21° 20° 19° 19° 19° 19° 19° 19°
RealFeel® 10° 11°
Humidity 52% 54% 58% 61% 63% 65% 67% 68%
   
  6pm 7pm 8pm 9pm 10pm 11pm 12am 1am
Rain
 
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Snow
 
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Ice
 
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  6pm 7pm 8pm 9pm 10pm 11pm 12am 1am
Wind (mph) 13 NNW 10 NW 10 NW 10 NW 9 WNW 8 WNW 8 W 8 W
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 2% 11% 11% 11% 11% 11% 11% 11%
Dew Point 10°
Middle Grid line 25 F Middle Grid line 20 F Middle Grid line 15 F

Temperature History - Jan 31

more Historical Weather Data >
  Today Normal Record 1/31/2014
High 25° 40° 64° (1947) 42°
Low 16° 24° -1° (1920) 17°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:09 AM with 10:07 of sunlight, then sets at 5:16 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:38 PM with 14:36 of moolight, then sets at 5:14 AM

Princeton Weather Report

Philadelphia: Snow to Change to Ice, Rain Before Groundhog Day

January 31, 2015; 10:06 AM ET

Cold air sweeping in this weekend will help pave the way for a winter storm late Sunday afternoon into Monday afternoon around Philadelphia. more >

The 540 Snow Line

Dec 20, 2012; 5:00 AM ET The 540 line is often used by meteorologists to determine the chances of rain vs. snow.

48 Hour Precipitation Forecast

Sat. Snow Day Potential