• Today

    Sep 2

    81°Lo 60°

    Clouds and sun; less humid

    High ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      70 - High
    • Tree
      Pollen
      0 - Low
    more
  • Wed

    Sep 3

    84°Lo 69°

    Partly sunny and more humid

    High ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      70 - High
    • Tree
      Pollen
      0 - Low
    more
  • Thu

    Sep 4

    88°Lo 70°

    Clouds and sun

    High ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      70 - High
    • Tree
      Pollen
      0 - Low
  • Fri

    Sep 5

    78°Lo 58°

    Not as warm with a t-storm

    High ragweed pollen levels
    • Precip
      57%
    • Wind
      Speed
      8 mph
    • Cloud
      Cover
      77%
    more
  • Sat

    Sep 6

    74°Lo 53°

    Mostly sunny and comfortable

    Ragweed Pollen Weather
    • Precip
      12%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      29%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Thu
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Mostly Cloudy
Mostly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Sunny
Partly Sunny
Temp (°F) 72° 76° 79° 81° 83° 86° 87° 88°
RealFeel® 72° 78° 83° 86° 90° 94° 94° 94°
Humidity 86% 83% 79% 75% 71% 68% 65% 63%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
16%
 
16%
 
16%
 
16%
 
11%
 
1%
 
1%
 
1%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 11 S 11 S 12 SSW 12 SSW 12 SSW 12 SSW 13 SSW 13 SSW
UV Index 1 3 4 5 5 5 4 3
Cloud Cover 81% 75% 71% 67% 61% 53% 42% 30%
Dew Point 68° 70° 72° 72° 73° 74° 74° 74°
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

Temperature History - Sep 4

more Historical Weather Data >
  Today Normal Record 9/4/2013
High 88° 81° 97° (1960) 82°
Low 70° 57° 43° (1997) 52°

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 4:03 PM with 10:16 of moolight, then sets at 2:19 AM

Top Story

Peru Weather Report

Chicago: Cooler, Less Humid Air to Return by Late Week

September 2, 2014; 4:05 AM ET

While Labor Day marks an unofficial end to the summer, the Chicago area will see warm, humid conditions continue before temperatures slide late in the week. more >

Thu. Dust & Dander

Thu. Wind Maps