• Today

    Sep 17

    70°Lo 48°

    Mostly sunny and pleasant

    Poor for home energy
    • Avg
      RealFeel
      61°
    • Hi
      RealFeel
      75°
    • Wind
      Speed
      2 mph
    more
  • Thu

    Sep 18

    71°Lo 50°

    Partly sunny and pleasant

    Home Energy Efficiency Weather
    • Avg
      RealFeel
      61°
    • Hi
      RealFeel
      74°
    • Wind
      Speed
      5 mph
  • Fri

    Sep 19

    75°Lo 61°

    Pleasant with periods of sun

    Poor for home energy
    • Avg
      RealFeel
      65°
    • Hi
      RealFeel
      74°
    • Wind
      Speed
      10 mph
    more
  • Sat

    Sep 20

    79°Lo 61°

    A t-storm in the afternoon

    Poor for home energy
    • Avg
      RealFeel
      68°
    • Hi
      RealFeel
      78°
    • Wind
      Speed
      13 mph
    more
  • Sun

    Sep 21

    75°Lo 54°

    Chance of a morning shower

    Poor for home energy
    • Avg
      RealFeel
      62°
    • Hi
      RealFeel
      74°
    • Wind
      Speed
      9 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
Clear
Clear
Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 52° 52° 51° 50° 48° 48° 51° 55°
RealFeel® 51° 51° 50° 48° 46° 46° 50° 56°
Humidity 84% 85% 87% 90% 92% 91% 87% 78%
   
  2am 3am 4am 5am 6am 7am 8am 9am
Rain
 
0%
 
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0%
 
0%
 
0%
 
0%
 
0%
Snow
 
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Ice
 
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  2am 3am 4am 5am 6am 7am 8am 9am
Wind (mph) 2 ENE 3 ENE 3 ENE 3 ENE 4 ENE 4 NE 4 ENE 5 ENE
UV Index 0 0 0 0 0 0 0 1
Cloud Cover 0% 0% 0% 0% 0% 0% 26% 26%
Dew Point 47° 47° 47° 47° 46° 46° 47° 49°
Middle Grid line 60 F Middle Grid line 55 F Middle Grid line 50 F Middle Grid line 45 F

Temperature History - Sep 18

more Historical Weather Data >
  Today Normal Record 9/18/2013
High 71° 76° 93° (1954) 82°
Low 50° 51° 34° (1959) 61°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:40 AM with 12:21 of sunlight, then sets at 7:01 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:30 AM with 14:24 of moolight, then sets at 3:54 PM

Top Story

Peru Weather Report

Chicago: Cooler, Fall-Like Temperatures to Linger

September 17, 2014; 1:12 AM ET

The cooler, below-average conditions responsible for the fall-like feel will hold through the end of the week over the Chicago area. 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