• Today

    Aug 31

    87°Lo 68°

    Partly sunny and warmer

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
  • Tue

    Sep 1

    90°Lo 70°

    Fog in the a.m.; mostly sunny

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Wed

    Sep 2

    91°Lo 68°

    Partly sunny, hot and humid

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Thu

    Sep 3

    89°Lo 67°

    Mostly sunny, warm and humid

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Fri

    Sep 4

    89°Lo 68°

    Mostly sunny, warm and humid

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Mon
1am
2am 3am 4am 5am 6am 7am 8am
  1am 2am 3am 4am 5am 6am 7am 8am
Forecast
Cloudy
Fog
Fog
Fog
Fog
Fog
Fog
Partly Sunny
Temp (°F) 61° 61° 62° 62° 61° 61° 64° 70°
RealFeel® 63° 63° 64° 64° 63° 63° 68° 75°
Humidity 100% 100% 93% 97% 96% 100% 96% 84%
   
  1am 2am 3am 4am 5am 6am 7am 8am
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
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0%
   
  1am 2am 3am 4am 5am 6am 7am 8am
Wind (mph) 0 0 0 0 0 0 0 0
UV Index 0 0 0 0 0 0 0 1
Cloud Cover 60% 60% 100% 75% 95% 75% 36% 31%
Dew Point 61° 61° 60° 61° 60° 61° 63° 65°
Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F

Temperature History - Aug 31

more Historical Weather Data >
  Today Normal Record 8/31/2014
High 87° 80° N/A N/A
Low 68° 61° N/A N/A

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:18 AM with 13:10 of sunlight, then sets at 7:28 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:42 PM with 13:01 of moolight, then sets at 9:43 AM

Joliet Weather Report

Chicago: More Foggy Mornings in Store as Heat Holds on

August 31, 2015; 2:10 PM ET

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

The 540 Snow Line

Dec 20, 2012; 5:00 AM ET The 540 line is often used by meteorologists to determine the chances of rain vs. snow.

48 Hour Precipitation Forecast

Mon. Snow Day Potential