• Today

    Aug 30

    74°Lo 61°

    Clearing and warmer

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

    Aug 31

    83°Lo 68°

    Sunny, warmer and humid

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

    Sep 1

    86°Lo 70°

    Mostly sunny, warm and humid

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

    Sep 2

    88°Lo 67°

    Partly sunny and very warm

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

    Sep 3

    86°Lo 67°

    Mostly sunny and very warm

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Mon
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Sunny
Sunny
Sunny
Sunny
Sunny
Sunny
Sunny
Sunny
Temp (°F) 70° 74° 77° 79° 80° 81° 83° 82°
RealFeel® 73° 81° 86° 87° 88° 89° 90° 87°
Humidity 84% 76% 72% 65% 62% 60% 60% 60%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
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%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 4 S 5 S 6 S 6 SSE 7 SSE 7 SSE 7 SSE 7 SE
UV Index 2 3 5 6 6 6 5 3
Cloud Cover 4% 5% 4% 2% 0% 0% 0% 0%
Dew Point 65° 66° 68° 66° 66° 66° 68° 67°
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 31

more Historical Weather Data >
  Today Normal Record 8/31/2014
High 83° 78° N/A 84°
Low 68° 60° N/A 64°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:15 AM with 13:12 of sunlight, then sets at 7:27 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:40 PM with 13:02 of moolight, then sets at 9:42 AM

Lake Forest Weather Report

Chicago: Heat, Humidity to Build Through Week

August 30, 2015; 1:00 PM ET

A turn to warmer conditions is in store for the Chicago area heading into the new week. 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