• Early AM

    Apr 21

    Lo 54°

    A shower or heavy thunderstorm

    Running Weather
    • Precip
      54%
    • Hours of Precip
      2
    • Wind
      Gust
      13 mph
    more
  • Today

    Apr 21

    65°Lo 44°

    Partly sunny, breezy and nice

    Very Good for running
    • Precip
      3%
    • Hours of Precip
      0
    • Wind
      Gust
      25 mph
    more
  • Wed

    Apr 22

    62°Lo 37°

    Showers late in the afternoon

    Very Good for running
    • Precip
      75%
    • Hours of Precip
      2
    • Wind
      Gust
      25 mph
  • Thu

    Apr 23

    55°Lo 35°

    Cooler with clouds and sun

    Good for running
    • Precip
      7%
    • Hours of Precip
      0
    • Wind
      Gust
      25 mph
    more
  • Fri

    Apr 24

    54°Lo 33°

    Breezy with periods of sun

    Fair for running
    • Precip
      13%
    • Hours of Precip
      2
    • Wind
      Gust
      24 mph
    more
Next Previous
Hi 62° RealFeel® 63° Precipitation 75%

Day

N

E

S

W

  • W 14 mph
  • Gusts: 25 mph

Mainly cloudy and breezy; showers late in the afternoon

  • Max UV Index: 5 (Moderate)
  • Thunderstorms: 20%
  • Precipitation: 0.15 in
  • Rain: 0.15 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1.5 hrs
  • Hours of Rain: 1.5 hrs
Lo 37° RealFeel® 29° Precipitation 55%

Night

N

E

S

W

  • W 9 mph
  • Gusts: 17 mph

A passing evening shower; otherwise, cold with patchy clouds

  • Max UV Index: N/A
  • Thunderstorms: 20%
  • Precipitation: 0.02 in
  • Rain: 0.02 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0.5 hrs
  • Hours of Rain: 0.5 hrs

Temperature History - Apr 22

more Historical Weather Data >
  Today Normal Record 4/22/2014
High 62° 64° 89° (1985) 75°
Low 37° 43° 30° (1922) 45°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:10 AM with 13:35 of sunlight, then sets at 7:45 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 9:18 AM with 14:40 of moolight, then sets at 11:58 PM

Princeton Weather Report

Philly: Cooler Air to Sweep Away Warmth This Week

April 21, 2015; 12:04 AM ET

Cooler air will push into the Philadelphia area during the middle and latter part of the week. more >

Avoid the Winter Workout Blues

Dec 26, 2012; 5:00 AM ET When it's snowing or cold, most of us want nothing more than to keep warm on the couch. But Violeta Yas has some tips to help you sneak in mini workouts at the office, regardless of the weather.