• Partly sunny 86°
    Outdoor Concert Current Weather
    • RealFeel
      86°
    • Relative Humidity
      52%
    • Wind
      Speed
      7 mph
  • Tonight

    Aug 31

    Lo 68°

    Mainly clear, warm; fog late

    Outdoor Concert Weather
    • Hi
      RealFeel
      93°
    • Precip
      3%
    • Wind
      Speed
      4 mph
    Day Details >
  • Tomorrow

    Sep 1

    Hi 89°

    Fog in the morning; sunshine

    Excellent for an outdoor concert
    • Hi
      RealFeel
      94°
    • Precip
      25%
    • Wind
      Speed
      7 mph
    Day Details >
  • Wednesday

    Sep 2

    Hi 91°

    Partly sunny, hot and humid

    Excellent for an outdoor concert
    • Hi
      RealFeel
      96°
    • Precip
      7%
    • Wind
      Speed
      6 mph
    Day Details >
Next

A heat wave from Wednesday into Friday

8/31 9/1 Now: 6:57pm
PM 6-10
  • 6pm Hazy sunshine 83° 0%
  • 7pm Hazy sunshine 80° 0%
  • 8pm Clear 76° 0%
  • 9pm Clear 74° 0%
  • 10pm Clear 74° 0%
AM 5-10
  • 5am Fog 68° 0%
  • 6am Fog 69° 0%
  • 7am Fog 70° 0%
  • 8am Fog 73° 0%
  • 9am Fog 76° 0%
  • 10am Fog 80° 0%
AM 11-4
  • 11am Sunny 83° 0%
  • 12pm Mostly sunny 85° 0%
  • 1pm Mostly sunny 87° 3%
  • 2pm Mostly sunny 88° 7%
  • 3pm Intermittent clouds 89° 7%
  • 4pm Mostly sunny 88° 7%
Hourly Forecast >
Aug 31, 2015; 4:31 PM ET
Five-day Weather Forecast for Chicago, IL
Chicago, IL Weather Forecast

Blue Island Weather Report

Chicago: More Foggy Mornings in Store as Heat Holds on

August 31, 2015; 6:05 PM ET

Chicagoans can expect to begin September with a stretch of higher temperatures, increasing humidity and more foggy mornings. 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?