• Today

    Sep 4

    89°Lo 71°

    A thunderstorm in spots

    Good for driving
    • Precip
      40%
    • Hours of Precip
      1.5
    • Rain
      0.12 in
  • Sat

    Sep 5

    91°Lo 71°

    Partly sunny and hot

    Excellent for driving
    • Precip
      10%
    • Hours of Precip
      0
    • Rain
      0 in
    more
  • Sun

    Sep 6

    92°Lo 73°

    Partly sunny, hot and humid

    Excellent for driving
    • Precip
      8%
    • Hours of Precip
      0.5
    • Rain
      0.05 in
    more
  • Mon

    Sep 7

    84°Lo 70°

    An afternoon thunderstorm

    Very Good for driving
    • Precip
      55%
    • Hours of Precip
      2
    • Rain
      0.15 in
    more
  • Tue

    Sep 8

    79°Lo 67°

    Mostly cloudy with t-storms

    Good for driving
    • Precip
      71%
    • Hours of Precip
      6
    • Rain
      0.92 in
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Fri
7pm
8pm 9pm 10pm 11pm Sat
12am
1am 2am
  7pm 8pm 9pm 10pm 11pm 12am 1am 2am
Forecast
Partly Cloudy
Partly Cloudy
Mostly Clear
Clear
Mostly Clear
Partly Cloudy
T-storms
Mostly Cloudy
Temp (°F) 83° 81° 79° 77° 76° 75° 74° 73°
RealFeel® 90° 87° 85° 83° 80° 79° 75° 76°
Humidity 72% 76% 81% 84% 85% 86% 86% 86%
   
  7pm 8pm 9pm 10pm 11pm 12am 1am 2am
Rain
 
18%
 
32%
 
32%
 
36%
 
43%
 
47%
 
51%
 
43%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  7pm 8pm 9pm 10pm 11pm 12am 1am 2am
Wind (mph) 4 S 4 S 4 SSE 5 SSE 4 SSE 4 SE 4 SE 4 SE
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 65% 47% 21% 6% 16% 41% 65% 75%
Dew Point 73° 72° 73° 72° 71° 71° 70° 69°
Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F

Temperature History - Sep 4

more Historical Weather Data >
  Today Normal Record 9/4/2014
High 89° 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; 10:04 AM ET

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

Travel Weather Forecast

Sep 04, 2015; 5:45 AM ET United States travel weather forecast

Fri. Travel Weather

48 Hour Precipitation Forecast

Fri. Driving Weather