• Early AM

    Sep 1

    Lo 69°

    Areas of fog

    Ragweed Pollen Weather
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Today

    Sep 1

    89°Lo 71°

    Hazy, very warm and humid

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Wed

    Sep 2

    90°Lo 71°

    Partly sunny, hot and humid

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
  • Thu

    Sep 3

    89°Lo 69°

    Mostly sunny and very warm

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Fri

    Sep 4

    90°Lo 69°

    Mostly sunny and very warm

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Wed
1am
2am 3am 4am 5am 6am 7am 8am
  1am 2am 3am 4am 5am 6am 7am 8am
Forecast
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Sunny
Mostly Sunny
Temp (°F) 75° 74° 73° 73° 72° 71° 72° 74°
RealFeel® 76° 75° 74° 74° 73° 71° 73° 77°
Humidity 79% 78% 80% 82% 83% 85% 85% 82%
   
  1am 2am 3am 4am 5am 6am 7am 8am
Rain
 
0%
 
1%
 
1%
 
1%
 
1%
 
1%
 
1%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
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  1am 2am 3am 4am 5am 6am 7am 8am
Wind (mph) 6 SW 6 SW 6 SW 6 SW 5 SW 5 SW 5 WSW 5 WSW
UV Index 0 0 0 0 0 0 0 1
Cloud Cover 10% 12% 13% 13% 12% 11% 10% 26%
Dew Point 68° 67° 67° 67° 67° 66° 67° 68°
Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F

Temperature History - Sep 2

more Historical Weather Data >
  Today Normal Record 9/2/2014
High 90° 81° N/A N/A
Low 71° 58° N/A N/A

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:24 AM with 13:04 of sunlight, then sets at 7:28 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 10:05 PM with 14:01 of moolight, then sets at 12:06 PM

Peru Weather Report

Chicago: More Foggy Mornings in Store as Heat Holds on

September 1, 2015; 3:51 AM ET

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

Wed. Pollen

Wed. Dust & Dander

Wed. Wind Maps