• Today

    Aug 20

    84°Lo 66°

    Sun mixing with clouds

    Poor for skiing
    • Rain
      0 in
    • Precip
      15%
    • Hours of Precip
      0
    more
  • Thu

    Aug 21

    87°Lo 72°

    A couple of thunderstorms

    Poor for skiing
    • Rain
      0.23 in
    • Precip
      60%
    • Hours of Precip
      3
  • Fri

    Aug 22

    90°Lo 70°

    Periods of sun with a t-storm

    Poor for skiing
    • Rain
      0.29 in
    • Precip
      59%
    • Hours of Precip
      1.5
    more
  • Sat

    Aug 23

    86°Lo 68°

    Periods of sun with a t-storm

    Poor for skiing
    • Rain
      0.24 in
    • Precip
      58%
    • Hours of Precip
      1.5
    more
  • Sun

    Aug 24

    89°Lo 68°

    Very warm with clouds and sun

    Poor for skiing
    • Rain
      0 in
    • Precip
      25%
    • Hours of Precip
      0
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Thu
7am
8am 9am 10am 11am 12pm 1pm 2pm
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Forecast
Cloudy
Cloudy
T-storms
Cloudy
Mostly Cloudy
T-storms
Mostly Cloudy
Mostly Cloudy
Temp (°F) 68° 70° 73° 76° 79° 80° 83° 85°
RealFeel® 67° 71° 74° 80° 86° 87° 91° 92°
Humidity 93% 89% 84% 79% 73% 74% 68% 63%
   
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Rain
 
22%
 
47%
 
51%
 
47%
 
48%
 
52%
 
48%
 
34%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Wind (mph) 3 SSE 4 S 5 S 6 SSW 6 SSW 6 SSW 7 SSW 7 SSW
UV Index 0 1 1 2 4 5 5 5
Cloud Cover 90% 93% 92% 90% 82% 76% 76% 76%
Dew Point 66° 67° 68° 69° 70° 71° 71° 71°
Middle Grid line 90 F Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F

Temperature History - Aug 21

more Historical Weather Data >
  Today Normal Record 8/21/2013
High 87° 80° N/A 90°
Low 72° 62° N/A 66°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:05 AM with 13:39 of sunlight, then sets at 7:44 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:34 AM with 14:40 of moolight, then sets at 5:14 PM

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Grayslake Weather Report

Chicago: Threat of Thunderstorms Lingers After Heavy Rains Flood Wrigley Field

August 20, 2014; 11:53 AM ET

While there may be a mix of sunshine and clouds over the area, Chicago is facing more rounds of thunderstorms over the next several days. more >

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48 Hour Precipitation Forecast

Thu. Ski Weather