• Cloudy 80°
    Outdoor Concert Current Weather
    • RealFeel
      83°
    • Relative Humidity
      66%
    • Wind
      Speed
      8 mph
  • Today

    Aug 31

    Hi 91°

    Partly sunny, hot and humid

    Excellent for an outdoor concert
    • Hi
      RealFeel
      93°
    • Precip
      55%
    • Wind
      Speed
      8 mph
    Day Details >
  • Tomorrow

    Sep 1

    Hi 94°

    Plenty of sun, hot and humid

    Excellent for an outdoor concert
    • Hi
      RealFeel
      100°
    • Precip
      8%
    • Wind
      Speed
      5 mph
    Day Details >
  • Wednesday

    Sep 2

    Hi 94°

    Mostly sunny, hot and humid

    Excellent for an outdoor concert
    • Hi
      RealFeel
      101°
    • Precip
      11%
    • Wind
      Speed
      5 mph
    Day Details >
Next

A heat wave from tomorrow into Thursday

8/31 9/1 Now: 10:16am
AM 10-2
  • 10am Partly sunny 82° 47%
  • 11am Partly sunny 84° 19%
  • 12pm Partly sunny 87° 19%
  • 1pm Partly sunny 88° 13%
  • 2pm Partly sunny 89° 0%
PM 9-2
  • 9pm Mostly clear 83° 2%
  • 10pm Mostly clear 81° 2%
  • 11pm Clear 80° 2%
  • 12am Clear 78° 2%
  • 1am Clear 77° 1%
  • 2am Clear 76° 0%
AM 3-8
  • 3am Clear 75° 0%
  • 4am Clear 75° 0%
  • 5am Clear 74° 0%
  • 6am Clear 71° 0%
  • 7am Sunny 75° 0%
  • 8am Sunny 77° 0%
Hourly Forecast >
Aug 31, 2015; 7:00 AM ET
With a heat wave ridge parked over the Great Lakes and Northeast, heat and humidity will be high all week.
High Heat, Humidity to Bake Northeast All Week

National Park 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 >

Bad Weather and the Ballot Box

Oct 28, 2012; 5:00 AM ET The presidential election is only days away. How does the weather affect the number of people who show up to vote?