• Tonight

    Aug 21

    Lo 72°

    Showers and a heavier t-storm

    Sinus Headache Weather
    • Hi
      RealFeel
      86°
    • UV
      4 - Moderate
    • Cloud
      Cover
      91%
  • Fri

    Aug 22

    89°Lo 69°

    Warmer with a thunderstorm

    Neutral weather for sinus headaches
    • Hi
      RealFeel
      102°
    • UV
      6 - High
    • Cloud
      Cover
      58%
    more
  • Sat

    Aug 23

    82°Lo 68°

    Periods of sun with a t-storm

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      93°
    • UV
      6 - High
    • Cloud
      Cover
      69%
    more
  • Sun

    Aug 24

    88°Lo 71°

    Very warm with clouds and sun

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      95°
    • UV
      6 - High
    • Cloud
      Cover
      48%
    more
  • Mon

    Aug 25

    88°Lo 68°

    An afternoon thunderstorm

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      95°
    • UV
      6 - High
    • Cloud
      Cover
      26%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Thu
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
T-storms
Mostly Cloudy
Mostly Cloudy
T-storms
T-storms
T-storms
T-storms
T-storms
Temp (°F) 73° 74° 75° 76° 77° 76° 77° 76°
RealFeel® 75° 79° 82° 83° 86° 84° 85° 84°
Humidity 85% 84% 85% 90% 89% 92% 96% 94%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
56%
 
49%
 
49%
 
59%
 
53%
 
59%
 
63%
 
56%
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) 6 SW 6 ESE 6 S 6 S 5 WNW 5 E 5 E 5 ENE
UV Index 2 3 4 4 4 3 2 2
Cloud Cover 91% 87% 89% 95% 96% 94% 97% 95%
Dew Point 68° 69° 70° 73° 73° 73° 76° 74°
Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F

Temperature History - Aug 21

more Historical Weather Data >
  Today Normal Record 8/21/2013
High 77° 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 2:33 AM with 14:40 of moolight, then sets at 5:13 PM

Top Story

Lake Forest Weather Report

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

August 21, 2014; 12:59 PM 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 >

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!

Thu. Sinus Headache

Thu. UV Index