• Thu

    Sep 10

    81°Lo 60°

    Clouds and sun

    Excellent for lawn mowing
    • Hours of Precip
      0
    • Precip
      25%
    • Hi
      RealFeel
      86°
    more
  • Fri

    Sep 11

    80°Lo 55°

    Sun and some clouds

    Excellent for lawn mowing
    • Hours of Precip
      0
    • Precip
      25%
    • Hi
      RealFeel
      83°
    more
  • Sat

    Sep 12

    79°Lo 57°

    Considerable cloudiness

    Excellent for lawn mowing
    • Hours of Precip
      2
    • Precip
      66%
    • Hi
      RealFeel
      79°
    more
  • Sun

    Sep 13

    82°Lo 63°

    Overcast and humid

    Very Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      7%
    • Hi
      RealFeel
      89°
    more
  • Mon

    Sep 14

    77°Lo 55°

    Mostly sunny

    Excellent for lawn mowing
    • Hours of Precip
      0
    • Precip
      10%
    • Hi
      RealFeel
      78°
Next Previous
Hi 77° RealFeel® 78° Precipitation 0%

Day

N

E

S

W

  • WSW 10 mph
  • Gusts: 28 mph

Mostly sunny

  • Max UV Index: 5 (Moderate)
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 55° RealFeel® 51° Precipitation 10%

Night

N

E

S

W

  • WSW 7 mph
  • Gusts: 23 mph

Clear

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

Temperature History - Sep 14

more Historical Weather Data >
  Today Normal Record 9/14/2014
High 77° 77° 91° (2008) 69°
Low 55° 57° 41° (1985) 49°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:38 AM with 12:32 of sunlight, then sets at 7:10 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 7:49 AM with 12:03 of moolight, then sets at 7:52 PM

Princeton Weather Report

Philadelphia: Sizzling Heat Wave to Start September

September 1, 2015; 12:31 AM ET

July-like heat and humidity will continue around Philadelphia for the first week of September. 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?