• Today

    Aug 1

    82°Lo 66°

    Increasing amounts of sun

    Excellent for biking
    • Precip
      7%
    • Hours of Precip
      1
    • Wind
      Gust
      16 mph
  • Sun

    Aug 2

    84°Lo 62°

    A strong thunderstorm

    Fair for biking
    • Precip
      56%
    • Hours of Precip
      3
    • Wind
      Gust
      24 mph
    more
  • Mon

    Aug 3

    77°Lo 55°

    Partly sunny and less humid

    Very Good for biking
    • Precip
      14%
    • Hours of Precip
      0
    • Wind
      Gust
      16 mph
    more
  • Tue

    Aug 4

    78°Lo 57°

    Nice with periods of sun

    Excellent for biking
    • Precip
      11%
    • Hours of Precip
      0
    • Wind
      Gust
      14 mph
    more
  • Wed

    Aug 5

    75°Lo 56°

    Partly sunny and pleasant

    Excellent for biking
    • Precip
      10%
    • Hours of Precip
      0
    • Wind
      Gust
      13 mph
    more
Next Previous
Next 8 hours >
  Sat
12am
1am 2am 3am 4am 5am 6am 7am
  12am 1am 2am 3am 4am 5am 6am 7am
Forecast
Mostly Clear
Clear
Clear
Clear
Clear
Clear
Sunny
Sunny
Temp (°F) 64° 64° 63° 62° 61° 60° 60° 63°
RealFeel® 62° 62° 61° 60° 58° 59° 60° 63°
Humidity 72% 73% 72% 75% 81% 83% 87% 79%
   
  12am 1am 2am 3am 4am 5am 6am 7am
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%
 
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0%
   
  12am 1am 2am 3am 4am 5am 6am 7am
Wind (mph) 7 W 7 W 8 W 7 W 8 W 5 W 5 W 5 W
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 25% 0% 0% 0% 0% 0% 0% 3%
Dew Point 55° 55° 54° 54° 55° 55° 56° 56°
Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F

Temperature History - Aug 1

more Historical Weather Data >
  Today Normal Record 8/1/2014
High 82° 82° 97° (2006) 79°
Low 66° 62° 48° (1990) 56°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:48 AM with 14:26 of sunlight, then sets at 8:14 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:57 PM with 11:31 of moolight, then sets at 8:28 AM

DeKalb Weather Report

Chicago: Cooler Weather to Move in Midweek

August 1, 2015; 9:27 AM ET

After a warm start to the week, a trend toward cooler temperatures can be expected. more >

Is Your Outdoor Gear Waterproof?

Dec 5, 2012; 5:00 AM ET Now that it's cold enough to hit the slopes, you may want to look more closely at what materials your winter sports gear is made of. As it turns out, not all waterproofing is created equal.