• Today

    Sep 1

    87°Lo 70°

    Hazy sun, a t-storm in spots

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      93°
    • UV
      4 - Moderate
    • Cloud
      Cover
      39%
  • Wed

    Sep 2

    87°Lo 69°

    Fog in the a.m.; partly sunny

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      95°
    • UV
      5 - High
    • Cloud
      Cover
      28%
    more
  • Thu

    Sep 3

    83°Lo 66°

    Partly sunny, warm and humid

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      95°
    • UV
      4 - Moderate
    • Cloud
      Cover
      44%
    more
  • Fri

    Sep 4

    82°Lo 64°

    Sunny, warm and humid

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      90°
    • UV
      5 - High
    • Cloud
      Cover
      10%
    more
  • Sat

    Sep 5

    81°Lo 61°

    Mostly sunny, warm and humid

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      88°
    • UV
      4 - Moderate
    • Cloud
      Cover
      24%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Tue
2pm
3pm 4pm 5pm 6pm 7pm 8pm 9pm
  2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm
Forecast
Hazy
Hazy
Hazy
Hazy
T-storms
Hazy
Mostly Clear
Mostly Clear
Temp (°F) 85° 87° 87° 86° 85° 82° 79° 78°
RealFeel® 92° 93° 91° 89° 84° 83° 81° 79°
Humidity 58% 57% 55% 57% 60% 63% 68% 74%
   
  2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm
Rain
 
34%
 
34%
 
37%
 
47%
 
51%
 
47%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm
Wind (mph) 10 SSW 12 SW 10 SW 9 SW 8 SW 7 SW 6 SSW 6 SSW
UV Index 5 4 3 2 1 0 0 0
Cloud Cover 50% 37% 32% 28% 41% 40% 26% 26%
Dew Point 69° 70° 69° 69° 70° 68° 68° 69°
Middle Grid line 90 F Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F

Temperature History - Sep 1

more Historical Weather Data >
  Today Normal Record 9/1/2014
High 87° 78° N/A 82°
Low 70° 60° N/A 67°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:16 AM with 13:10 of sunlight, then sets at 7:26 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 9:19 PM with 13:35 of moolight, then sets at 10:54 AM

Lake Forest Weather Report

Chicago: More Foggy Mornings in Store as Heat Holds on

September 1, 2015; 3:41 PM ET

Chicagoans can expect to begin September with a stretch of higher temperatures, increasing humidity and more foggy mornings. more >

New Year, New You

Dec 24, 2012; 5:00 AM ET Start 2013 right with these tips on how to set realistic New Year's resolutions!

Tue. Sinus Headache

Tue. UV Index