• Tonight

    Sep 4

    Lo 70°

    Partly cloudy, warm and humid

    Lawn Mowing Weather
    • Hours of Precip
      0
    • Precip
      25%
    • Hi
      RealFeel
      87°
    more
  • Sat

    Sep 5

    87°Lo 74°

    Sun and some clouds

    Very Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      24%
    • Hi
      RealFeel
      95°
  • Sun

    Sep 6

    89°Lo 75°

    Mostly sunny, warm and humid

    Very Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      10%
    • Hi
      RealFeel
      94°
    more
  • Mon

    Sep 7

    85°Lo 73°

    A t-storm in the afternoon

    Very Good for lawn mowing
    • Hours of Precip
      0.5
    • Precip
      55%
    • Hi
      RealFeel
      90°
    more
  • Tue

    Sep 8

    80°Lo 68°

    Mostly cloudy with t-storms

    Good for lawn mowing
    • Hours of Precip
      4
    • Precip
      69%
    • Hi
      RealFeel
      84°
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sat
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Partly Sunny
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 75° 78° 80° 82° 84° 86° 86° 87°
RealFeel® 79° 85° 89° 91° 93° 95° 95° 93°
Humidity 78% 74% 70% 63% 59% 58% 56% 53%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
6%
 
6%
 
6%
 
6%
 
4%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 6 S 6 SSW 6 S 6 S 6 S 6 S 6 S 6 S
UV Index 2 3 4 5 5 5 4 3
Cloud Cover 45% 53% 58% 58% 52% 39% 26% 21%
Dew Point 68° 69° 70° 68° 68° 69° 69° 68°
Middle Grid line 90 F Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F

Temperature History - Sep 5

more Historical Weather Data >
  Today Normal Record 9/5/2014
High 87° 79° 97° (1954) 89°
Low 74° 62° 48° (1988) 67°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:20 AM with 12:58 of sunlight, then sets at 7:18 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:13 AM with 9:53 of moolight, then sets at 2:07 PM

Chicago Weather Report

Chicago: Sun, Humidity to Grip Region Before Stormy Labor Day

September 4, 2015; 8:03 PM ET

As the Labor Day weekend shapes up, Chicago residents will see mostly sunny and humid conditions until the holiday itself on Monday. 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?

Sat. Overnight Freeze

Sat. Degree Days

Sat. Evapotranspiration