• Early AM

    Dec 29

    Lo 23°

    Increasing clouds

    Home Energy Efficiency Weather
    • Avg
      RealFeel
      26°
    • Hi
      RealFeel
      32°
    • Wind
      Speed
      2 mph
    more
  • Today

    Dec 29

    34°Lo 14°

    Mostly cloudy

    Good for home energy
    • Avg
      RealFeel
      16°
    • Hi
      RealFeel
      29°
    • Wind
      Speed
      8 mph
    more
  • Tue

    Dec 30

    19°Lo 6°

    Partly sunny and very cold

    Very Good for home energy
    • Avg
      RealFeel
      -1°
    • Hi
      RealFeel
    • Wind
      Speed
      12 mph
    more
  • Wed

    Dec 31

    18°Lo 16°

    Brisk and very cold

    Excellent for home energy
    • Avg
      RealFeel
      -4°
    • Hi
      RealFeel
      -1°
    • Wind
      Speed
      15 mph
  • Thu

    Jan 1

    30°Lo 20°

    Sunny, breezy and not as cold

    Very Good for home energy
    • Avg
      RealFeel
      14°
    • Hi
      RealFeel
      16°
    • Wind
      Speed
      15 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
Sunny
Sunny
Sunny
Sunny
Sunny
Sunny
Sunny
Sunny
Temp (°F) 11° 13° 14° 15° 17° 18° 18°
RealFeel® -8° -6° -4° -3° -2° -1° -1° -1°
Humidity 58% 53% 48% 46% 44% 42% 42% 42%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
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) 13 W 14 WSW 15 WSW 16 WSW 16 WSW 17 WSW 17 WSW 17 SW
UV Index 0 1 2 2 2 1 0 0
Cloud Cover 0% 0% 0% 0% 0% 0% 0% 0%
Dew Point -3° -3° -3° -3° -3° -3° -2° -1°
Middle Grid line 20 F Middle Grid line 15 F Middle Grid line 10 F Middle Grid line 5 F

Temperature History - Dec 31

more Historical Weather Data >
  Today Normal Record 12/31/2013
High 18° 31° 57° (2004) 15°
Low 16° 15° -18° (1976) -3°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:22 AM with 9:15 of sunlight, then sets at 4:37 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:30 PM with 14:19 of moolight, then sets at 3:49 AM

Peru Weather Report

Chicago: Temperatures to Tumble as Year Comes to an End

December 29, 2014; 2:57 AM ET

Temperatures are set to tumble this week across Chicagoland, putting a harsh chill on the final days of 2014. 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