• Today

    Dec 22

    41°Lo 38°

    Turning cloudy, p.m. mist

    Advisory for hair frizz
    • Wind
      Gust
      8 mph
    • Precip
      41%
    • Hours of Precip
      4
    more
  • Tue

    Dec 23

    49°Lo 45°

    A passing shower or two

    Warning for hair frizz
    • Wind
      Gust
      12 mph
    • Precip
      56%
    • Hours of Precip
      5.5
  • Wed

    Dec 24

    58°Lo 52°

    Downpours; breezy and mild

    Warning for hair frizz
    • Wind
      Gust
      29 mph
    • Precip
      80%
    • Hours of Precip
      16
    more
  • Thu

    Dec 25

    55°Lo 34°

    Clouds breaking and windy

    Watch for hair frizz
    • Wind
      Gust
      28 mph
    • Precip
      25%
    • Hours of Precip
      0
    more
  • Fri

    Dec 26

    50°Lo 35°

    Mostly sunny

    Watch for hair frizz
    • Wind
      Gust
      15 mph
    • Precip
      3%
    • Hours of Precip
      0
    more
Next Previous
Hi 49° RealFeel® 49° Precipitation 56%

Day

N

E

S

W

  • SE 6 mph
  • Gusts: 12 mph

Rather cloudy with a passing shower or two

  • Max UV Index: 1 (Low)
  • Thunderstorms: 20%
  • Precipitation: 0.05 in
  • Rain: 0.05 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 2 hrs
  • Hours of Rain: 2 hrs
Lo 45° RealFeel® 41° Precipitation 75%

Night

N

E

S

W

  • E 2 mph
  • Gusts: 7 mph

Considerable cloudiness and mild with occasional rain followed by a steadier rain

  • Max UV Index: N/A
  • Thunderstorms: 3%
  • Precipitation: 0.16 in
  • Rain: 0.16 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 3.5 hrs
  • Hours of Rain: 3.5 hrs

Temperature History - Dec 23

more Historical Weather Data >
  Today Normal Record 12/23/2013
High 49° 41° 65° (1990) 62°
Low 45° 25° (1989) 41°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:19 AM with 9:18 of sunlight, then sets at 4:37 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:21 AM with 10:28 of moolight, then sets at 6:49 PM

Princeton Weather Report

Philly: Christmas Eve Storm to Affect Holiday Travel This Week

December 22, 2014; 4:03 AM ET

Holiday travel will be at risk across the Philadelphia area this week as a strong storm takes shape and blasts through the Northeast. more >

The History Behind the UV Index

Nov 12, 2012; 5:00 AM ET The UV index has been around since the early 1990s. It was created to help you plan outdoor activities in hopes to limit overexposure to the sun. Jeannette Calle has more.

Tue. Hair Frizz

Tue. Wind Maps

Tue. UV Index