• Today

    Apr 21

    52°Lo 30°

    Increasingly windy

    Poor for skiing
    • Rain
      0.02 in
    • Precip
      50%
    • Hours of Precip
      0.5
  • Wed

    Apr 22

    46°Lo 26°

    Chilly with clouds and sun

    Poor for skiing
    • Rain
      0 in
    • Precip
      13%
    • Hours of Precip
      0
    more
  • Thu

    Apr 23

    50°Lo 28°

    Sunny and breezy

    Poor for skiing
    • Rain
      0 in
    • Precip
      11%
    • Hours of Precip
      0
    more
  • Fri

    Apr 24

    49°Lo 33°

    Sunshine giving way to clouds

    Poor for skiing
    • Rain
      0 in
    • Precip
      4%
    • Hours of Precip
      0
    more
  • Sat

    Apr 25

    46°Lo 30°

    Partly sunny and chilly

    Fair for skiing
    • Rain
      0 in
    • Precip
      7%
    • Hours of Precip
      0
    more
Next Previous
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  Tue
4pm
5pm 6pm 7pm 8pm 9pm 10pm 11pm
  4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Forecast
Cloudy
Cloudy
Cloudy
Mostly Cloudy
Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Temp (°F) 52° 52° 52° 50° 38° 37° 36° 35°
RealFeel® 44° 43° 44° 43° 26° 25° 26° 24°
Humidity 35% 34% 34% 36% 60% 66% 68% 71%
   
  4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Rain
 
20%
 
20%
 
20%
 
14%
 
1%
 
1%
 
1%
 
1%
Snow
 
0%
 
0%
 
0%
 
0%
 
1%
 
1%
 
1%
 
1%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Wind (mph) 21 W 21 W 16 W 13 W 16 W 15 W 13 W 13 W
UV Index 2 1 0 0 0 0 0 0
Cloud Cover 98% 99% 99% 89% 67% 43% 32% 39%
Dew Point 25° 25° 24° 24° 26° 27° 27° 26°
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 Middle Grid line 30 F

Temperature History - Apr 21

more Historical Weather Data >
  Today Normal Record 4/21/2014
High 52° 58° N/A 72°
Low 30° 40° N/A 55°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:02 AM with 13:38 of sunlight, then sets at 7:40 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:18 AM with 14:46 of moolight, then sets at 11:04 PM

Grayslake Weather Report

Chicago: Temperatures to Plummet After Extended Warm Spell

April 21, 2015; 11:17 AM ET

After a two-week stretch of above-normal temperatures, Chicago is set to fall into a chilly pattern into late this week. more >

Tourism of Doom: Traveling to Endangered Places

Aug 30, 2012; 5:00 AM ET If you're longing to ski the Alps or swim in the Great Barrier Reef, you may be running out of time. A changing climate may beat you to the punch line. Valerie Smock has more.

Radar & Satellite

48 Hour Precipitation Forecast

Tue. Ski Weather