• Early AM

    Sep 20

    Lo 56°

    Partly to mostly cloudy

    Home Energy Efficiency Weather
    • Avg
      RealFeel
      60°
    • Hi
      RealFeel
      69°
    • Wind
      Speed
      10 mph
    more
  • Today

    Sep 20

    74°Lo 53°

    Heavy thunderstorms

    Poor for home energy
    • Avg
      RealFeel
      59°
    • Hi
      RealFeel
      71°
    • Wind
      Speed
      12 mph
    more
  • Sun

    Sep 21

    63°Lo 41°

    Cooler with clouds breaking

    Poor for home energy
    • Avg
      RealFeel
      50°
    • Hi
      RealFeel
      60°
    • Wind
      Speed
      13 mph
  • Mon

    Sep 22

    64°Lo 44°

    Mostly sunny

    Poor for home energy
    • Avg
      RealFeel
      56°
    • Hi
      RealFeel
      68°
    • Wind
      Speed
      4 mph
    more
  • Tue

    Sep 23

    69°Lo 46°

    Mostly sunny and nice

    Poor for home energy
    • Avg
      RealFeel
      58°
    • Hi
      RealFeel
      72°
    • Wind
      Speed
      4 mph
    more
Next Previous
Hi 63° RealFeel® 60° Precipitation 25%

Day

N

E

S

W

  • NNW 13 mph
  • Gusts: 21 mph

Breezy and cooler with clouds giving way to some sun

  • Max UV Index: 4 (Moderate)
  • Thunderstorms: 17%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 41° RealFeel® 39° Precipitation 0%

Night

N

E

S

W

  • NNW 5 mph
  • Gusts: 11 mph

Clear and chilly

  • Max UV Index: N/A
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Sep 21

more Historical Weather Data >
  Today Normal Record 9/21/2013
High 63° 72° 87° (1994) 66°
Low 41° 50° 32° (1991) 48°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:41 AM with 12:13 of sunlight, then sets at 6:54 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:13 AM with 13:19 of moolight, then sets at 5:32 PM

Top Story

DeKalb Weather Report

Chicago: Thunderstorms to Precede More Cool Air

September 20, 2014; 3:28 AM ET

Chicago is facing the threat of some disruptive thunderstorms on Saturday. 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