• Today

    Feb 1

    35°Lo 30°

    Mostly cloudy and not as cold

    Poor for lawn mowing
    • Hours of Precip
      3.5
    • Precip
      25%
    • Hi
      RealFeel
      32°
  • Mon

    Feb 2

    42°Lo 14°

    Mixed snow and sleet

    Poor for lawn mowing
    • Hours of Precip
      4
    • Precip
      70%
    • Hi
      RealFeel
      36°
    more
  • Tue

    Feb 3

    25°Lo 18°

    Mostly sunny and colder

    Poor for lawn mowing
    • Hours of Precip
      0
    • Precip
      0%
    • Hi
      RealFeel
      21°
    more
  • Wed

    Feb 4

    40°Lo 26°

    Mostly cloudy and not as cold

    Poor for lawn mowing
    • Hours of Precip
      0
    • Precip
      25%
    • Hi
      RealFeel
      35°
    more
  • Thu

    Feb 5

    30°Lo 7°

    Mostly cloudy and colder

    Poor for lawn mowing
    • Hours of Precip
      0
    • Precip
      12%
    • Hi
      RealFeel
      19°
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
7am
8am 9am 10am 11am 12pm 1pm 2pm
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Forecast
Cloudy
Cloudy
Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Cloudy
Cloudy
Temp (°F) 19° 20° 23° 28° 31° 33° 34° 35°
RealFeel® 16° 19° 23° 29° 31° 31° 31° 31°
Humidity 71% 71% 68% 62% 59% 57% 56% 56%
   
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
6%
 
6%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
1%
 
17%
 
17%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Wind (mph) 5 WSW 5 W 5 W 5 NW 6 WSW 7 NW 7 W 7 WNW
UV Index 0 0 0 1 2 2 1 1
Cloud Cover 93% 94% 95% 88% 78% 83% 94% 96%
Dew Point 11° 12° 14° 16° 18° 19° 20° 21°
Middle Grid line 40 F Middle Grid line 35 F Middle Grid line 30 F Middle Grid line 25 F Middle Grid line 20 F Middle Grid line 15 F

Temperature History - Feb 1

more Historical Weather Data >
  Today Normal Record 2/1/2014
High 35° 40° 67° (2012) 47°
Low 30° 24° -3° (1920) 28°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:08 AM with 10:09 of sunlight, then sets at 5:17 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:32 PM with 14:24 of moolight, then sets at 5:56 AM

Princeton Weather Report

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

February 1, 2015; 2:06 PM ET

Unsettled weather will start off the week in the Philadelphia area before dry weather returns and temperatures tumble. more >

Why Do Leaves Change Color?

Sep 20, 2011; 5:00 AM ET Why do leaves change from green to beautiful shades of red, orange and yellow in the fall?

Current Drought Status

Current Soil Conditions

Sun. Overnight Freeze

Sun. Degree Days

Sun. Evapotranspiration