• Early AM

    Oct 21

    Lo 40°

    Partly cloudy

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

    Oct 21

    54°Lo 35°

    Times of clouds and sun

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

    Oct 22

    56°Lo 36°

    Plenty of sunshine

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

    Oct 23

    57°Lo 46°

    An afternoon shower

    Low ragweed pollen levels
    • Precip
      41%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      76%
    more
  • Fri

    Oct 24

    64°Lo 46°

    Pleasant and warmer

    Low ragweed pollen levels
    • Precip
      6%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      38%
    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
Partly Cloudy
Clear
Clear
Clear
Clear
Clear
Clear
Sunny
Temp (°F) 39° 39° 38° 38° 36° 35° 35° 37°
RealFeel® 38° 37° 38° 38° 36° 35° 36° 37°
Humidity 85% 85% 86% 85% 87% 88% 88% 87%
   
  1am 2am 3am 4am 5am 6am 7am 8am
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%
   
  1am 2am 3am 4am 5am 6am 7am 8am
Wind (mph) 5 NE 4 NE 4 NE 2 NNE 2 NNE 2 NE 2 NE 2 E
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 46% 9% 5% 1% 1% 2% 4% 4%
Dew Point 35° 35° 34° 34° 32° 32° 32° 34°
Middle Grid line 40 F Middle Grid line 35 F Middle Grid line 30 F

Temperature History - Oct 22

more Historical Weather Data >
  Today Normal Record 10/22/2013
High 56° 57° N/A 42°
Low 36° 36° N/A 22°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:14 AM with 10:47 of sunlight, then sets at 6:01 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:54 AM with 11:34 of moolight, then sets at 5:28 PM

Crystal Lake Weather Report

Cool Weather Ahead for Chicago

October 20, 2014; 9:18 AM ET

Seasonable temperatures will be the rule this week across Chicagoland. more >

Wed. Pollen

Wed. Dust & Dander

Wed. Wind Maps