• Tonight

    Sep 15

    Lo 41°

    Clouds breaking; chilly

    Lawn Mowing Weather
    • Hours of Precip
      0.5
    • Precip
      52%
    • Hi
      RealFeel
      60°
    more
  • Tue

    Sep 16

    61°Lo 42°

    Mostly sunny and cool

    Excellent for lawn mowing
    • Hours of Precip
      0
    • Precip
      3%
    • Hi
      RealFeel
      67°
    more
  • Wed

    Sep 17

    64°Lo 44°

    Mostly sunny and nice

    Excellent for lawn mowing
    • Hours of Precip
      0
    • Precip
      6%
    • Hi
      RealFeel
      70°
  • Thu

    Sep 18

    66°Lo 48°

    Nice with plenty of sunshine

    Excellent for lawn mowing
    • Hours of Precip
      0
    • Precip
      5%
    • Hi
      RealFeel
      68°
    more
  • Fri

    Sep 19

    69°Lo 59°

    Mostly cloudy

    Excellent for lawn mowing
    • Hours of Precip
      0
    • Precip
      25%
    • Hi
      RealFeel
      68°
    more
Next Previous
Hi 64° RealFeel® 70° Precipitation 6%

Day

N

E

S

W

  • WSW 4 mph
  • Gusts: 7 mph

Mostly sunny and nice

  • Max UV Index: 5 (Moderate)
  • Thunderstorms: 1%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 44° RealFeel® 41° Precipitation 5%

Night

N

E

S

W

  • SSE 4 mph
  • Gusts: 7 mph

Clear and chilly

  • Max UV Index: N/A
  • Thunderstorms: 1%
  • 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 17

more Historical Weather Data >
  Today Normal Record 9/17/2013
High 64° 74° 85° (1997) 71°
Low 44° 52° 40° (1990) 46°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:37 AM with 12:24 of sunlight, then sets at 7:01 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:33 AM with 14:41 of moolight, then sets at 3:14 PM

Top Story

DeKalb Weather Report

Chicago: Cooler, Fall-Like Temperatures to Linger

September 15, 2014; 9:18 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 >

Why Do Leaves Change Color?

Sep 20, 2011; 5:00 AM ET Why do leaves change from green to beautiful shades of red, orange and yellow in the fall?

Wed. Degree Days

Wed. Evapotranspiration