• Tonight

    Sep 2

    Lo 57°

    Clear

    Ragweed Pollen Weather
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      70 - High
    • Tree
      Pollen
      0 - Low
  • Wed

    Sep 3

    84°Lo 69°

    Partly sunny

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

    Sep 4

    89°Lo 71°

    Partly sunny, warm and humid

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

    Sep 5

    77°Lo 57°

    Not as warm with t-storms

    High ragweed pollen levels
    • Precip
      64%
    • Wind
      Speed
      8 mph
    • Cloud
      Cover
      76%
    more
  • Sat

    Sep 6

    72°Lo 51°

    Mostly sunny and nice

    Ragweed Pollen Weather
    • Precip
      11%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      21%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Tue
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  7pm 8pm 9pm 10pm 11pm 12am 1am 2am
Forecast
Mostly Sunny
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Temp (°F) 74° 70° 69° 66° 64° 64° 63° 61°
RealFeel® 70° 66° 65° 63° 63° 63° 62° 60°
Humidity 61% 67% 72% 77% 81% 83% 85% 87%
   
  7pm 8pm 9pm 10pm 11pm 12am 1am 2am
Rain
 
0%
 
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0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
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Ice
 
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  7pm 8pm 9pm 10pm 11pm 12am 1am 2am
Wind (mph) 6 WNW 5 WNW 4 WNW 3 WNW 2 WNW 2 WNW 2 WNW 2 WNW
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 27% 0% 0% 0% 0% 0% 1% 1%
Dew Point 60° 59° 59° 59° 58° 59° 58° 57°
Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F

Temperature History - Sep 2

more Historical Weather Data >
  Today Normal Record 9/2/2013
High 80° 78° N/A 72°
Low 57° 55° N/A 49°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:19 AM with 13:07 of sunlight, then sets at 7:26 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:11 PM with 9:59 of moolight, then sets at 12:10 AM

Top Story

Crystal Lake Weather Report

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

September 2, 2014; 6:11 PM 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 >

Tue. Pollen

Tue. Dust & Dander

Tue. Wind Maps