• Sat

    Sep 5

    82°Lo 62°

    Mostly sunny

    Very Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      8%
    • Hi
      RealFeel
      86°
    more
  • Sun

    Sep 6

    82°Lo 66°

    Plenty of sunshine

    Very Good for lawn mowing
    • Hours of Precip
      2
    • Precip
      6%
    • Hi
      RealFeel
      85°
    more
  • Mon

    Sep 7

    86°Lo 70°

    Plenty of sunshine

    Very Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      10%
    • Hi
      RealFeel
      85°
  • Tue

    Sep 8

    84°Lo 66°

    Clouds and breaks of sun

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

    Sep 9

    81°Lo 60°

    A thunderstorm possible

    Very Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      30%
    • Hi
      RealFeel
      81°
    more
Next Previous
Hi 86° RealFeel® 85° Precipitation 10%

Day

N

E

S

W

  • N 9 mph
  • Gusts: 15 mph

Plenty of sunshine

  • Max UV Index: 6 (High)
  • Thunderstorms: 24%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 70° RealFeel® 67° Precipitation 6%

Night

N

E

S

W

  • WSW 9 mph
  • Gusts: 22 mph

Partly cloudy, warm and humid

  • Max UV Index: N/A
  • Thunderstorms: 24%
  • 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 7

more Historical Weather Data >
  Today Normal Record 9/7/2014
High 86° 79° 94° (1912) 80°
Low 70° 60° 41° (1984) 63°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:31 AM with 12:50 of sunlight, then sets at 7:21 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:18 AM with 14:35 of moolight, then sets at 3:53 PM

Princeton Weather Report

Philadelphia: Sizzling Heat Wave to Start September

August 31, 2015; 3:45 AM ET

A push of summery heat and humidity will arrive in Philadelphia this week as September begins 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?