• Today

    Jul 31

    81°Lo 61°

    A thunderstorm in spots

    Poor for home energy
    • Avg
      RealFeel
      72°
    • Hi
      RealFeel
      83°
    • Wind
      Speed
      5 mph
  • Fri

    Aug 1

    81°Lo 61°

    An afternoon thunderstorm

    Poor for home energy
    • Avg
      RealFeel
      74°
    • Hi
      RealFeel
      87°
    • Wind
      Speed
      3 mph
    more
  • Sat

    Aug 2

    79°Lo 57°

    Partly sunny with a t-storm

    Poor for home energy
    • Avg
      RealFeel
      71°
    • Hi
      RealFeel
      86°
    • Wind
      Speed
      3 mph
    more
  • Sun

    Aug 3

    83°Lo 61°

    Mostly sunny and nice

    Poor for home energy
    • Avg
      RealFeel
      74°
    • Hi
      RealFeel
      88°
    • Wind
      Speed
      3 mph
    more
  • Mon

    Aug 4

    85°Lo 64°

    Partly sunny and pleasant

    Poor for home energy
    • Avg
      RealFeel
      75°
    • Hi
      RealFeel
      88°
    • Wind
      Speed
      4 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Thu
2am
3am 4am 5am 6am 7am 8am 9am
  2am 3am 4am 5am 6am 7am 8am 9am
Forecast
Clear
Clear
Clear
Mostly Clear
Mostly Sunny
Mostly Sunny
Sunny
Sunny
Temp (°F) 61° 60° 59° 58° 58° 60° 63° 68°
RealFeel® 60° 59° 58° 57° 57° 60° 64° 69°
Humidity 88% 88% 90% 91% 97% 91% 80% 70%
   
  2am 3am 4am 5am 6am 7am 8am 9am
Rain
 
0%
 
0%
 
0%
 
2%
 
2%
 
4%
 
7%
 
7%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
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  2am 3am 4am 5am 6am 7am 8am 9am
Wind (mph) 2 NNW 2 W 2 NNW 2 NW 2 NW 2 NW 3 WNW 4 WNW
UV Index 0 0 0 0 0 0 1 3
Cloud Cover 0% 3% 4% 11% 16% 19% 7% 8%
Dew Point 57° 57° 56° 56° 57° 57° 57° 58°
Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F

Temperature History - Jul 31

more Historical Weather Data >
  Today Normal Record 7/31/2013
High 81° 84° 99° (2006) 75°
Low 61° 62° 50° (1997) 65°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:50 AM with 14:25 of sunlight, then sets at 8:15 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 10:21 AM with 12:02 of moolight, then sets at 10:23 PM

Top Story

Peru Weather Report

Late-Week Thunderstorms in Store for Chicago

July 31, 2014; 2:58 AM ET

Thunderstorms will move into the Chicago area later this week, and the threat for storms will remain into the weekend. 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.

Thu. Home Energy Efficiency

Thu. Degree Days

Thu. UV Index