• Tonight

    Aug 31

    Lo 69°

    Mainly clear, warm; fog late

    Ragweed Pollen Weather
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
  • Tue

    Sep 1

    89°Lo 70°

    Mostly sunny and humid

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

    Sep 2

    91°Lo 68°

    Partly sunny, hot and humid

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

    Sep 3

    90°Lo 68°

    Mostly sunny and hot

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

    Sep 4

    90°Lo 67°

    Mostly sunny and very warm

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
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  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Hazy
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Hazy
Temp (°F) 68° 73° 78° 81° 85° 85° 87° 86°
RealFeel® 71° 81° 89° 89° 94° 93° 92° 90°
Humidity 89% 81% 74% 64% 54% 52% 51% 50%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
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  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 1 N 1 ENE 2 ENE 2 NE 4 S 5 ENE 6 SE 6 WNW
UV Index 1 3 5 4 5 5 3 2
Cloud Cover 71% 36% 35% 77% 59% 35% 71% 76%
Dew Point 65° 67° 69° 67° 67° 66° 67° 66°
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 Middle Grid line 65 F

Temperature History - Aug 31

more Historical Weather Data >
  Today Normal Record 8/31/2014
High 87° 82° N/A N/A
Low 69° 58° N/A N/A

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:22 AM with 13:09 of sunlight, then sets at 7:31 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:46 PM with 13:01 of moolight, then sets at 9:47 AM

Peru Weather Report

Chicago: More Foggy Mornings in Store as Heat Holds on

August 31, 2015; 9:17 PM ET

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

Mon. Pollen

Mon. Dust & Dander

Mon. Wind Maps