• Tonight

    Sep 4

    Lo 71°

    A thunderstorm in spots

    Lawn Mowing Weather
    • Hours of Precip
      1
    • Precip
      35%
    • Hi
      RealFeel
      106°
  • Sat

    Sep 5

    90°Lo 72°

    Partly sunny, hot and humid

    Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      10%
    • Hi
      RealFeel
      100°
    more
  • Sun

    Sep 6

    93°Lo 73°

    Partly sunny, hot and humid

    Very Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      8%
    • Hi
      RealFeel
      97°
    more
  • Mon

    Sep 7

    87°Lo 71°

    An afternoon thunderstorm

    Good for lawn mowing
    • Hours of Precip
      1.5
    • Precip
      55%
    • Hi
      RealFeel
      91°
    more
  • Tue

    Sep 8

    79°Lo 65°

    Mostly cloudy with t-storms

    Fair for lawn mowing
    • Hours of Precip
      6
    • Precip
      71%
    • Hi
      RealFeel
      82°
    more
Next Previous
A shower or thunderstorm 82° Lo 74° RealFeel® 87° / 74°

N

E

S

W

  • Precipitation: 40%
  • Rain: 0.04 in
  • Snow: 0 in
  • Humidity: 80%
  • Cloud Cover: 32%
  • Dew Point: 70° F
  • Visibility: 9 mi
4 mph

Temperature History - Sep 4

more Historical Weather Data >
  Today Normal Record 9/4/2014
High 92° 81° N/A N/A
Low 71° 57° N/A N/A

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:26 AM with 12:59 of sunlight, then sets at 7:25 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:34 PM with 14:37 of moolight, then sets at 2:11 PM

Peru 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?

Current Drought Status

Current Soil Conditions

Fri. Overnight Freeze

Fri. Degree Days

Fri. Evapotranspiration