• Tonight

    Dec 17

    Lo 18°

    Mostly cloudy

    Home Energy Efficiency Weather
    • Avg
      RealFeel
      13°
    • Hi
      RealFeel
      12°
    • Wind
      Speed
      12 mph
    more
  • Thu

    Dec 18

    28°Lo 20°

    Mostly cloudy

    Good for home energy
    • Avg
      RealFeel
      24°
    • Hi
      RealFeel
      27°
    • Wind
      Speed
      5 mph
    more
  • Fri

    Dec 19

    31°Lo 22°

    Mostly cloudy

    Good for home energy
    • Avg
      RealFeel
      27°
    • Hi
      RealFeel
      32°
    • Wind
      Speed
      2 mph
    more
  • Sat

    Dec 20

    32°Lo 23°

    Clouds giving way to some sun

    Good for home energy
    • Avg
      RealFeel
      27°
    • Hi
      RealFeel
      33°
    • Wind
      Speed
      4 mph
    more
  • Sun

    Dec 21

    35°Lo 28°

    Partly sunny

    Good for home energy
    • Avg
      RealFeel
      23°
    • Hi
      RealFeel
      28°
    • Wind
      Speed
      8 mph
Next Previous
Low clouds 30° Lo 30° RealFeel® 19° / 18°

N

E

S

W

  • Precipitation: 15%
  • Rain: 0 in
  • Snow: 0 in
  • Humidity: 94%
  • Cloud Cover: 91%
  • Dew Point: 28° F
  • Visibility: 10 mi
12 mph

Temperature History - Dec 21

more Historical Weather Data >
  Today Normal Record 12/21/2013
High 35° 30° 57° (1967) 32°
Low 28° 15° -8° (2008) 25°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:19 AM with 9:08 of sunlight, then sets at 4:27 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:34 AM with 10:01 of moolight, then sets at 4:35 PM

DeKalb Weather Report

Chicago: White Christmas in the Offing

December 17, 2014; 6:33 PM ET

While the next couple of days will be tranquil for the Chicago area, Christmas Eve could deliver enough snow to blanket the city. 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.

Sun. Home Energy Efficiency

Sun. Degree Days

Sun. UV Index