• Today

    Sep 17

    73°Lo 51°

    Nice with brilliant sunshine

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

    Sep 18

    75°Lo 51°

    Sunny to partly cloudy

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

    Sep 19

    69°Lo 54°

    Partly sunny and nice

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

    Sep 20

    77°Lo 61°

    Partly sunny

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

    Sep 21

    81°Lo 61°

    Warm with sun and some clouds

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Thu
8am
9am 10am 11am 12pm 1pm 2pm 3pm
  8am 9am 10am 11am 12pm 1pm 2pm 3pm
Forecast
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 55° 59° 63° 67° 71° 71° 72° 73°
RealFeel® 55° 61° 67° 71° 76° 77° 77° 76°
Humidity 86% 76% 66% 58% 53% 50% 47% 45%
   
  8am 9am 10am 11am 12pm 1pm 2pm 3pm
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%
   
  8am 9am 10am 11am 12pm 1pm 2pm 3pm
Wind (mph) 2 NW 3 NNW 3 NNW 4 N 4 NNW 5 NNW 5 NW 5 NW
UV Index 0 1 3 4 5 5 5 4
Cloud Cover 10% 10% 10% 10% 10% 10% 26% 26%
Dew Point 50° 52° 52° 52° 53° 52° 51° 51°
Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F Middle Grid line 50 F

Temperature History - Sep 18

more Historical Weather Data >
  Today Normal Record 9/18/2013
High 75° 75° 90° (1965) 71°
Low 51° 56° 39° (1986) 41°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:42 AM with 12:21 of sunlight, then sets at 7:03 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:32 AM with 14:20 of moolight, then sets at 3:52 PM

Top Story

Princeton Weather Report

Philly: Remainder of Week to Be Dry, Cool

September 17, 2014; 7:01 AM ET

Rainfall will be scarce around Philadelphia this week, but cool air will be plentiful. 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

Thu. Snow Day Potential