• Early AM

    Apr 21

    Lo 54°

    A shower or thunderstorm

    Hair Frizz Weather
    • Wind
      Gust
      13 mph
    • Precip
      54%
    • Hours of Precip
      1.5
    more
  • Today

    Apr 21

    65°Lo 44°

    Partly sunny, breezy and nice

    Watch for hair frizz
    • Wind
      Gust
      25 mph
    • Precip
      3%
    • Hours of Precip
      0
  • Wed

    Apr 22

    62°Lo 37°

    Showers late in the afternoon

    Watch for hair frizz
    • Wind
      Gust
      25 mph
    • Precip
      75%
    • Hours of Precip
      1.5
    more
  • Thu

    Apr 23

    55°Lo 35°

    Cooler with clouds and sun

    Unlikely for hair frizz
    • Wind
      Gust
      25 mph
    • Precip
      7%
    • Hours of Precip
      0
    more
  • Fri

    Apr 24

    54°Lo 33°

    Breezy with periods of sun

    Unlikely for hair frizz
    • Wind
      Gust
      24 mph
    • Precip
      13%
    • Hours of Precip
      2
    more
Next Previous
Cloudy 65° RealFeel® 62°

N

E

S

W

  • Humidity: 75%
  • Pressure: 29.52 in
  • UV Index: 0
  • Cloud Cover: 100%
  • Ceiling: 4300 ft
  • Dew Point: 57° F
  • Visibility: 10 mi
10 mph

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:12 AM with 13:32 of sunlight, then sets at 7:44 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:27 AM with 14:36 of moolight, then sets at 11:03 PM

Temperature Summary - 1:37 AM

  Temp (°F)
Now 65°
Yesterday 84°
RealFeel® 62°
RealFeel® Shade 62°
Wind Chill 65°
Dew Point 57°
  Hi / Lo
Previous 6 Hours 65°
  58°
Previous 12 Hours 71°
  58°
Previous 24 Hours 71°
  46°

Temperature History - Apr 21

more Historical Weather Data >
  Today Normal Record 4/21/2014
High 65° 63° 87° (1985) 69°
Low 44° 43° 30° (1925) 33°

Precipitation Summary - 1:37 AM

  Amount (in)
Previous 1 Hour 0.1
Previous 3 Hours 0.1
Previous 6 Hours 0.1
Previous 9 Hours 0.1
Previous 12 Hours 0.1
Previous 18 Hours 0.5
Previous 24 Hours 0.74

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 >

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