• Sat

    Sep 13

    80°Lo 61°

    A thunderstorm in spots

    Home Energy Efficiency Weather
    • Avg
      RealFeel
      69°
    • Hi
      RealFeel
      79°
    • Wind
      Speed
      5 mph
    more
  • Sun

    Sep 14

    81°Lo 61°

    Sunny

    Home Energy Efficiency Weather
    • Avg
      RealFeel
      71°
    • Hi
      RealFeel
      83°
    • Wind
      Speed
      3 mph
    more
  • Mon

    Sep 15

    77°Lo 61°

    A thunderstorm or two

    Home Energy Efficiency Weather
    • Avg
      RealFeel
      66°
    • Hi
      RealFeel
      74°
    • Wind
      Speed
      6 mph
  • Tue

    Sep 16

    79°Lo 60°

    Partly sunny

    Home Energy Efficiency Weather
    • Avg
      RealFeel
      67°
    • Hi
      RealFeel
      77°
    • Wind
      Speed
      6 mph
    more
  • Wed

    Sep 17

    72°Lo 53°

    Partly sunny

    Home Energy Efficiency Weather
    • Avg
      RealFeel
      59°
    • Hi
      RealFeel
      71°
    • Wind
      Speed
      8 mph
    more
Next Previous
Hi 77° RealFeel® 74° Precipitation 60%

Day

N

E

S

W

  • S 6 mph
  • Gusts: 13 mph

Mostly cloudy with a couple of thunderstorms around

  • Max UV Index: 4 (Moderate)
  • Thunderstorms: 60%
  • Precipitation: 0.17 in
  • Rain: 0.17 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 3 hrs
  • Hours of Rain: 3 hrs
Lo 61° RealFeel® 58° Precipitation 61%

Night

N

E

S

W

  • WSW 5 mph
  • Gusts: 14 mph

Mostly cloudy with a couple of thunderstorms around

  • Max UV Index: N/A
  • Thunderstorms: 60%
  • Precipitation: 0.31 in
  • Rain: 0.31 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 4 hrs
  • Hours of Rain: 4 hrs

Temperature History - Sep 15

more Historical Weather Data >
  Today Normal Record 9/15/2013
High 77° 76° 92° (1927) 72°
Low 61° 57° 38° (1985) 45°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:39 AM with 12:29 of sunlight, then sets at 7:08 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:48 PM with 14:39 of moolight, then sets at 2:27 PM

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Princeton Weather Report

Philly: Downpour, Flooding Risk to Increase Thursday

August 20, 2014; 3:12 AM ET

A wedge of dry air will slowly erode at midweek and will allow showers and thunderstorms to survive the trip into Philadelphia from the Midwest. more >

Energy Efficient Lightbulbs and S.A.D

Sep 8, 2012; 5:00 AM ET With shorter days and colder nights in the fall and winter, some people develop seasonal affective disorder. When shopping for lightbulbs to treat the 'winter blues,'consider energy-efficient bulbs.