• Tonight

    Sep 2

    Lo 70°

    Mostly cloudy with a t-storm

    Home Energy Efficiency Weather
    • Avg
      RealFeel
      82°
    • Hi
      RealFeel
      94°
    • Wind
      Speed
      8 mph
  • Thu

    Sep 3

    86°Lo 67°

    Clouds and sun with a t-storm

    Poor for home energy
    • Avg
      RealFeel
      80°
    • Hi
      RealFeel
      93°
    • Wind
      Speed
      8 mph
    more
  • Fri

    Sep 4

    85°Lo 69°

    Clouds and sun with a t-storm

    Poor for home energy
    • Avg
      RealFeel
      81°
    • Hi
      RealFeel
      93°
    • Wind
      Speed
      5 mph
    more
  • Sat

    Sep 5

    87°Lo 69°

    Partly sunny, warm and humid

    Poor for home energy
    • Avg
      RealFeel
      80°
    • Hi
      RealFeel
      92°
    • Wind
      Speed
      7 mph
    more
  • Sun

    Sep 6

    88°Lo 69°

    Partly sunny and very warm

    Poor for home energy
    • Avg
      RealFeel
      78°
    • Hi
      RealFeel
      90°
    • Wind
      Speed
      9 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Wed
7pm
8pm 9pm 10pm 11pm Thu
12am
1am 2am
  7pm 8pm 9pm 10pm 11pm 12am 1am 2am
Forecast
Mostly Sunny
Cloudy
Mostly Cloudy
Cloudy
T-storms
Cloudy
Cloudy
Mostly Cloudy
Temp (°F) 81° 79° 77° 76° 74° 74° 73° 73°
RealFeel® 84° 81° 79° 77° 71° 74° 74° 73°
Humidity 68% 68% 75% 77% 77% 79% 81% 81%
   
  7pm 8pm 9pm 10pm 11pm 12am 1am 2am
Rain
 
2%
 
19%
 
19%
 
24%
 
51%
 
47%
 
43%
 
47%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  7pm 8pm 9pm 10pm 11pm 12am 1am 2am
Wind (mph) 7 WSW 6 WSW 6 SW 7 SSW 7 SSW 7 SSW 7 SSW 6 SSW
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 11% 70% 80% 90% 93% 91% 90% 89%
Dew Point 70° 68° 69° 68° 67° 67° 67° 66°
Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F

Temperature History - Sep 2

more Historical Weather Data >
  Today Normal Record 9/2/2014
High 89° 78° N/A 77°
Low 70° 55° N/A 54°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:19 AM with 13:07 of sunlight, then sets at 7:26 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 10:00 PM with 14:05 of moolight, then sets at 12:05 PM

Crystal Lake Weather Report

Chicago: Sun, Humidity to Grip Region Before Stormy Labor Day

September 2, 2015; 3:34 PM ET

As the Labor Day weekend shapes up, Chicago residents will see mostly sunny and humid conditions until the holiday itself on Monday. more >

Energy Efficient Lightbulbs and S.A.D

Sep 8, 2012; 5:00 AM ET With shorter days and colder nights in the fall and winter, some people develop seasonal affective disorder. When shopping for lightbulbs to treat the 'winter blues,'consider energy-efficient bulbs.

Wed. Home Energy Efficiency

Wed. Degree Days

Wed. UV Index