• Today

    Sep 17

    70°Lo 48°

    Mostly sunny and pleasant

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      0 - Low
  • Thu

    Sep 18

    71°Lo 50°

    Partly sunny and pleasant

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

    Sep 19

    75°Lo 61°

    Pleasant with periods of sun

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Sat

    Sep 20

    79°Lo 61°

    A t-storm in the afternoon

    Low ragweed pollen levels
    • Precip
      55%
    • Wind
      Speed
      13 mph
    • Cloud
      Cover
      76%
    more
  • Sun

    Sep 21

    75°Lo 54°

    Chance of a morning shower

    Ragweed Pollen Weather
    • Precip
      30%
    • Wind
      Speed
      9 mph
    • Cloud
      Cover
      51%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Wed
5am
6am 7am 8am 9am 10am 11am 12pm
  5am 6am 7am 8am 9am 10am 11am 12pm
Forecast
Mostly Clear
Mostly Clear
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 45° 45° 46° 48° 52° 58° 62° 64°
RealFeel® 46° 46° 46° 48° 54° 63° 69° 72°
Humidity 89% 89% 88% 87% 78% 70% 64% 59%
   
  5am 6am 7am 8am 9am 10am 11am 12pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  5am 6am 7am 8am 9am 10am 11am 12pm
Wind (mph) 1 ESE 1 E 2 ESE 2 S 2 SSW 3 SW 3 SW 3 SW
UV Index 0 0 0 0 1 3 4 5
Cloud Cover 13% 13% 12% 11% 11% 10% 11% 11%
Dew Point 42° 42° 42° 44° 45° 48° 50° 50°
Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F Middle Grid line 50 F Middle Grid line 45 F Middle Grid line 40 F

Temperature History - Sep 17

more Historical Weather Data >
  Today Normal Record 9/17/2013
High 70° 77° 92° (1954) 72°
Low 48° 52° 41° (1990) 45°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:39 AM with 12:24 of sunlight, then sets at 7:03 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:36 AM with 14:38 of moolight, then sets at 3:14 PM

Top Story

Peru Weather Report

Chicago: Cooler, Fall-Like Temperatures to Linger

September 17, 2014; 1:12 AM ET

The cooler, below-average conditions responsible for the fall-like feel will hold through the end of the week over the Chicago area. more >

Wed. Pollen

Wed. Dust & Dander

Wed. Wind Maps