• Today

    Sep 4

    89°Lo 71°

    A thunderstorm in spots

    Fair for home energy
    • Avg
      RealFeel
      87°
    • Hi
      RealFeel
      102°
    • Wind
      Speed
      4 mph
  • Sat

    Sep 5

    91°Lo 71°

    Partly sunny and hot

    Fair for home energy
    • Avg
      RealFeel
      87°
    • Hi
      RealFeel
      100°
    • Wind
      Speed
      6 mph
    more
  • Sun

    Sep 6

    92°Lo 73°

    Partly sunny, hot and humid

    Fair for home energy
    • Avg
      RealFeel
      84°
    • Hi
      RealFeel
      98°
    • Wind
      Speed
      8 mph
    more
  • Mon

    Sep 7

    84°Lo 70°

    An afternoon thunderstorm

    Poor for home energy
    • Avg
      RealFeel
      80°
    • Hi
      RealFeel
      91°
    • Wind
      Speed
      6 mph
    more
  • Tue

    Sep 8

    79°Lo 67°

    Mostly cloudy with t-storms

    Poor for home energy
    • Avg
      RealFeel
      74°
    • Hi
      RealFeel
      85°
    • Wind
      Speed
      9 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Fri
1pm
2pm 3pm 4pm 5pm 6pm 7pm 8pm
  1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm
Forecast
Partly Sunny
Partly Sunny
Partly Sunny
T-storms
Partly Sunny
Partly Cloudy
Partly Cloudy
Partly Cloudy
Temp (°F) 86° 88° 89° 87° 87° 85° 83° 81°
RealFeel® 100° 102° 102° 96° 98° 94° 90° 87°
Humidity 60% 60% 60% 64% 65% 70% 72% 76%
   
  1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm
Rain
 
1%
 
43%
 
47%
 
51%
 
18%
 
14%
 
18%
 
32%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm
Wind (mph) 5 W 5 W 5 WSW 5 SW 5 SSW 4 S 4 S 4 S
UV Index 6 5 4 3 2 1 0 0
Cloud Cover 46% 46% 46% 46% 46% 60% 65% 47%
Dew Point 71° 73° 73° 74° 74° 74° 73° 72°
Middle Grid line 90 F Middle Grid line 85 F Middle Grid line 80 F

Temperature History - Sep 4

more Historical Weather Data >
  Today Normal Record 9/4/2014
High 89° 81° N/A N/A
Low 71° 57° N/A N/A

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:26 AM with 12:59 of sunlight, then sets at 7:25 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:34 PM with 14:37 of moolight, then sets at 2:11 PM

Peru Weather Report

Chicago: Sun, Humidity to Grip Region Before Stormy Labor Day

September 4, 2015; 5:04 AM ET

As the Labor Day weekend shapes up, Chicago residents will see mostly sunny and humid conditions until the holiday itself on Monday. 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.

Fri. Home Energy Efficiency

Fri. Degree Days

Fri. UV Index