• Today

    Sep 1

    87°Lo 68°

    Fog in the morning; hazy sun

    Very Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      25%
    • Hi
      RealFeel
      95°
    more
  • Wed

    Sep 2

    88°Lo 67°

    Fog in the morning; some sun

    Very Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      25%
    • Hi
      RealFeel
      97°
  • Thu

    Sep 3

    85°Lo 67°

    Mostly sunny, warm and humid

    Very Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      25%
    • Hi
      RealFeel
      94°
    more
  • Fri

    Sep 4

    86°Lo 67°

    Mostly sunny, warm and humid

    Very Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      8%
    • Hi
      RealFeel
      96°
    more
  • Sat

    Sep 5

    86°Lo 67°

    Warm and humid with sunshine

    Very Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      25%
    • Hi
      RealFeel
      94°
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Wed
5am
6am 7am 8am 9am 10am 11am 12pm
  5am 6am 7am 8am 9am 10am 11am 12pm
Forecast
Cloudy
Partly Cloudy
Mostly Sunny
Fog
Fog
Fog
Partly Sunny
Partly Sunny
Temp (°F) 70° 68° 70° 73° 77° 80° 82° 84°
RealFeel® 71° 70° 72° 76° 83° 88° 91° 94°
Humidity 92% 97% 93% 87% 81% 73% 66% 61%
   
  5am 6am 7am 8am 9am 10am 11am 12pm
Rain
 
4%
 
4%
 
3%
 
1%
 
1%
 
1%
 
1%
 
1%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  5am 6am 7am 8am 9am 10am 11am 12pm
Wind (mph) 6 WSW 5 WSW 4 WSW 5 W 6 WSW 6 WSW 7 WSW 6 W
UV Index 0 0 0 1 2 3 4 5
Cloud Cover 54% 35% 25% 35% 45% 45% 45% 36%
Dew Point 67° 67° 68° 69° 70° 71° 70° 70°
Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F

Temperature History - Sep 2

more Historical Weather Data >
  Today Normal Record 9/2/2014
High 88° 79° 93° (2000) 77°
Low 67° 58° 43° (1976) 61°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:21 AM with 13:06 of sunlight, then sets at 7:27 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 10:02 PM with 14:04 of moolight, then sets at 12:06 PM

DeKalb Weather Report

Chicago: More Foggy Mornings in Store as Heat Holds on

September 1, 2015; 4:41 AM ET

Chicagoans can expect to begin September with a stretch of higher temperatures, increasing humidity and more foggy mornings. 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. Overnight Freeze

Wed. Degree Days

Wed. Evapotranspiration