• Today

    Sep 1

    92°Lo 69°

    Sunshine, a t-storm in spots

    Poor for home energy
    • Avg
      RealFeel
      89°
    • Hi
      RealFeel
      104°
    • Wind
      Speed
      5 mph
    more
  • Wed

    Sep 2

    90°Lo 69°

    Fog in the a.m.; partly sunny

    Fair for home energy
    • Avg
      RealFeel
      88°
    • Hi
      RealFeel
      100°
    • Wind
      Speed
      4 mph
  • Thu

    Sep 3

    90°Lo 67°

    Partly sunny, warm and humid

    Fair for home energy
    • Avg
      RealFeel
      86°
    • Hi
      RealFeel
      99°
    • Wind
      Speed
      2 mph
    more
  • Fri

    Sep 4

    91°Lo 67°

    Mostly sunny, hot and humid

    Fair for home energy
    • Avg
      RealFeel
      85°
    • Hi
      RealFeel
      101°
    • Wind
      Speed
      2 mph
    more
  • Sat

    Sep 5

    88°Lo 64°

    Mostly sunny, warm and humid

    Poor for home energy
    • Avg
      RealFeel
      82°
    • Hi
      RealFeel
      96°
    • Wind
      Speed
      4 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Wed
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Fog
Fog
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 78° 81° 84° 86° 88° 90° 89° 89°
RealFeel® 85° 91° 95° 97° 99° 100° 97° 95°
Humidity 76% 68% 61% 55% 52% 48% 49% 49%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
1%
 
1%
 
1%
 
1%
 
1%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 4 WSW 4 WSW 5 WSW 5 WSW 5 WSW 6 WSW 5 WSW 5 WSW
UV Index 2 3 5 6 6 6 5 3
Cloud Cover 26% 26% 26% 26% 26% 26% 26% 26%
Dew Point 70° 70° 70° 68° 68° 68° 67° 68°
Middle Grid line 95 F Middle Grid line 90 F Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F

Temperature History - Sep 2

more Historical Weather Data >
  Today Normal Record 9/2/2014
High 90° 80° N/A N/A
Low 69° 60° N/A N/A

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:20 AM with 13:05 of sunlight, then sets at 7:25 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 10:01 PM with 14:02 of moolight, then sets at 12:03 PM

Joliet Weather Report

Chicago: More Foggy Mornings in Store as Heat Holds on

September 1, 2015; 4:41 AM ET

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

Energy Efficient Lightbulbs and S.A.D

Sep 8, 2012; 5:00 AM ET With shorter days and colder nights in the fall and winter, some people develop seasonal affective disorder. When shopping for lightbulbs to treat the 'winter blues,'consider energy-efficient bulbs.

Wed. Home Energy Efficiency

Wed. Degree Days

Wed. UV Index