• Today

    Apr 19

    65°Lo 42°

    Sunny much of the time

    Moderate indoor dust & dander levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
  • Sun

    Apr 20

    73°Lo 52°

    Partly sunny

    Low indoor dust & dander levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Mon

    Apr 21

    69°Lo 45°

    A couple of thunderstorms

    Low indoor dust & dander levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Tue

    Apr 22

    56°Lo 34°

    Cooler; a morning shower

    Low indoor dust & dander levels
    • Precip
      40%
    • Wind
      Speed
      12 mph
    • Cloud
      Cover
      60%
    more
  • Wed

    Apr 23

    58°Lo 40°

    Partly sunny

    Moderate indoor dust & dander levels
    • Precip
      10%
    • Wind
      Speed
      8 mph
    • Cloud
      Cover
      33%
    more
Next Previous
Next 8 hours >
  Sat
12am
1am 2am 3am 4am 5am 6am 7am
  12am 1am 2am 3am 4am 5am 6am 7am
Forecast
Clear
Clear
Mostly Clear
Clear
Clear
Clear
Clear
Mostly Sunny
Temp (°F) 38° 37° 36° 35° 35° 34° 37° 37°
RealFeel® 29° 29° 27° 27° 27° 26° 29° 31°
Humidity 67% 67% 67% 68% 70% 72% 73% 71%
   
  12am 1am 2am 3am 4am 5am 6am 7am
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%
   
  12am 1am 2am 3am 4am 5am 6am 7am
Wind (mph) 9 E 9 E 9 E 8 E 8 E 8 E 7 E 7 E
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 0% 5% 12% 9% 2% 2% 6% 11%
Dew Point 28° 27° 26° 25° 26° 26° 29° 29°
Middle Grid line 40 F Middle Grid line 35 F Middle Grid line 30 F

Temperature History - Apr 19

more Historical Weather Data >
  Today Normal Record 4/19/2013
High 65° 58° N/A 39°
Low 42° 36° N/A 30°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:07 AM with 13:32 of sunlight, then sets at 7:39 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at --:-- with of moolight, then sets at 9:22 AM

Top Story

Crystal Lake Weather Report

Chicago: Weekend Warmth on the Way

April 19, 2014; 3:14 AM ET

Seasonal warmth looks to make a return to Chicago right in time for the holiday weekend. more >

Is it a Cold or the Flu?

Apr 19, 2014; 5:00 AM ET Symptoms caused by the common cold can often resemble those associated with the influenza virus, so how do you differentiate between the two?

Sat. Pollen

Sat. Dust & Dander

Sat. Wind Maps