• Today

    Aug 30

    81°Lo 64°

    A thunderstorm or two

    Poor for home energy
    • Avg
      RealFeel
      73°
    • Hi
      RealFeel
      82°
    • Wind
      Speed
      12 mph
    more
  • Sun

    Aug 31

    85°Lo 69°

    Partly sunny and humid

    Poor for home energy
    • Avg
      RealFeel
      77°
    • Hi
      RealFeel
      89°
    • Wind
      Speed
      5 mph
    more
  • Mon

    Sep 1

    82°Lo 64°

    Thunderstorms, strong late

    Poor for home energy
    • Avg
      RealFeel
      74°
    • Hi
      RealFeel
      86°
    • Wind
      Speed
      12 mph
  • Tue

    Sep 2

    79°Lo 58°

    Times of clouds and sun

    Poor for home energy
    • Avg
      RealFeel
      68°
    • Hi
      RealFeel
      81°
    • Wind
      Speed
      6 mph
    more
  • Wed

    Sep 3

    83°Lo 68°

    Partly sunny and pleasant

    Poor for home energy
    • Avg
      RealFeel
      76°
    • Hi
      RealFeel
      85°
    • Wind
      Speed
      8 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Mon
5pm
6pm 7pm 8pm 9pm 10pm 11pm Tue
12am
  5pm 6pm 7pm 8pm 9pm 10pm 11pm 12am
Forecast
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Temp (°F) 78° 77° 75° 74° 73° 72° 71° 71°
RealFeel® 79° 77° 75° 73° 72° 71° 69° 69°
Humidity 78% 80% 85% 86% 88% 89% 90% 91%
   
  5pm 6pm 7pm 8pm 9pm 10pm 11pm 12am
Rain
 
34%
 
34%
 
29%
 
20%
 
20%
 
20%
 
20%
 
20%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  5pm 6pm 7pm 8pm 9pm 10pm 11pm 12am
Wind (mph) 12 SW 10 SW 9 SW 9 SW 8 SW 8 WSW 7 WSW 7 W
UV Index 2 1 0 0 0 0 0 0
Cloud Cover 64% 70% 52% 47% 43% 41% 42% 44%
Dew Point 71° 70° 70° 69° 69° 68° 68° 68°
Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F

Temperature History - Sep 1

more Historical Weather Data >
  Today Normal Record 9/1/2013
High 82° 78° N/A 82°
Low 64° 55° N/A 56°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:18 AM with 13:10 of sunlight, then sets at 7:28 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:11 PM with 10:09 of moolight, then sets at 11:20 PM

Top Story

Crystal Lake Weather Report

Chicago: Thunderstorms May Dampen Labor Day Plans

August 29, 2014; 2:08 PM ET

Thunderstorms and showers will persist in the Chicago area throughout the holiday weekend, bringing the risk of disrupting outdoor activities and weekend plans. 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.

Mon. Home Energy Efficiency

Mon. Degree Days

Mon. UV Index