• Today

    Sep 16

    63°Lo 44°

    Mostly sunny

    Poor for home energy
    • Avg
      RealFeel
      56°
    • Hi
      RealFeel
      68°
    • Wind
      Speed
      4 mph
    more
  • Wed

    Sep 17

    67°Lo 48°

    Mostly sunny and nice

    Poor for home energy
    • Avg
      RealFeel
      60°
    • Hi
      RealFeel
      73°
    • Wind
      Speed
      3 mph
  • Thu

    Sep 18

    64°Lo 49°

    Mostly sunny and nice

    Poor for home energy
    • Avg
      RealFeel
      56°
    • Hi
      RealFeel
      67°
    • Wind
      Speed
      6 mph
    more
  • Fri

    Sep 19

    72°Lo 59°

    Times of clouds and sun

    Poor for home energy
    • Avg
      RealFeel
      62°
    • Hi
      RealFeel
      71°
    • Wind
      Speed
      11 mph
    more
  • Sat

    Sep 20

    78°Lo 62°

    A couple of p.m. t-storms

    Poor for home energy
    • Avg
      RealFeel
      66°
    • Hi
      RealFeel
      75°
    • Wind
      Speed
      12 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Wed
3am
4am 5am 6am 7am 8am 9am 10am
  3am 4am 5am 6am 7am 8am 9am 10am
Forecast
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 45° 45° 44° 45° 46° 50° 54° 59°
RealFeel® 45° 44° 43° 45° 45° 49° 55° 63°
Humidity 87% 89% 91% 91% 88% 82% 72% 64%
   
  3am 4am 5am 6am 7am 8am 9am 10am
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%
   
  3am 4am 5am 6am 7am 8am 9am 10am
Wind (mph) 2 WNW 2 WNW 2 WSW 2 WSW 3 WSW 3 WSW 4 W 4 W
UV Index 0 0 0 0 0 0 1 3
Cloud Cover 11% 11% 11% 11% 11% 11% 11% 11%
Dew Point 41° 41° 41° 43° 43° 45° 45° 47°
Middle Grid line 60 F Middle Grid line 55 F Middle Grid line 50 F Middle Grid line 45 F Middle Grid line 40 F

Temperature History - Sep 17

more Historical Weather Data >
  Today Normal Record 9/17/2013
High 67° 73° N/A 66°
Low 48° 53° N/A 49°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:34 AM with 12:25 of sunlight, then sets at 6:59 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:29 AM with 14:43 of moolight, then sets at 3:12 PM

Top Story

Grayslake Weather Report

Chicago: Cooler, Fall-Like Temperatures to Linger

September 16, 2014; 9:12 AM ET

The cooler, below-average conditions responsible for the fall-like feel will hold through the end of the week over the Chicago area. 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