• Tonight

    Apr 27

    Lo 33°

    Clear and cold

    Snow Days Weather
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
  • Tue

    Apr 28

    58°Lo 37°

    Sunshine and patchy clouds

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Wed

    Apr 29

    59°Lo 35°

    Periods of sun

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Thu

    Apr 30

    56°Lo 37°

    Breezy with periods of sun

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Fri

    May 1

    64°Lo 48°

    Sunny and warmer

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Mon
3pm
4pm 5pm 6pm 7pm 8pm 9pm 10pm
  3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm
Forecast
Partly Sunny
Partly Sunny
Mostly Sunny
Partly Sunny
Mostly Sunny
Mostly Clear
Clear
Clear
Temp (°F) 57° 56° 55° 53° 50° 46° 42° 39°
RealFeel® 57° 54° 52° 48° 43° 39° 36° 36°
Humidity 43% 44% 45% 47% 50% 61% 69% 74%
   
  3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm
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%
   
  3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm
Wind (mph) 13 N 13 NNE 14 NNE 14 NE 13 NE 10 NE 8 NE 6 NE
UV Index 5 4 2 1 0 0 0 0
Cloud Cover 36% 38% 18% 30% 28% 11% 5% 4%
Dew Point 35° 34° 34° 33° 32° 33° 33° 32°
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 Middle Grid line 35 F

Temperature History - Apr 27

more Historical Weather Data >
  Today Normal Record 4/27/2014
High 57° 61° N/A 52°
Low 33° 39° N/A 38°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:55 AM with 13:53 of sunlight, then sets at 7:48 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:50 PM with 13:23 of moolight, then sets at 3:13 AM

Crystal Lake Weather Report

Sunshine to Prevail This Week in Chicago

April 27, 2015; 4:50 PM ET

Sunny skies and cooler conditions will be the rule this week in Chicago. more >

The 540 Snow Line

Dec 20, 2012; 5:00 AM ET The 540 line is often used by meteorologists to determine the chances of rain vs. snow.

48 Hour Precipitation Forecast

Mon. Snow Day Potential