• Early AM

    Oct 22

    Lo 35°

    Clear

    Home Energy Efficiency Weather
    • Avg
      RealFeel
      40°
    • Hi
      RealFeel
      44°
    • Wind
      Speed
      5 mph
    more
  • Today

    Oct 22

    55°Lo 35°

    Sunshine

    Fair for home energy
    • Avg
      RealFeel
      46°
    • Hi
      RealFeel
      57°
    • Wind
      Speed
      5 mph
    more
  • Thu

    Oct 23

    55°Lo 45°

    A shower in the afternoon

    Fair for home energy
    • Avg
      RealFeel
      49°
    • Hi
      RealFeel
      53°
    • Wind
      Speed
      7 mph
  • Fri

    Oct 24

    61°Lo 47°

    Partly sunny and warmer

    Poor for home energy
    • Avg
      RealFeel
      52°
    • Hi
      RealFeel
      63°
    • Wind
      Speed
      6 mph
    more
  • Sat

    Oct 25

    64°Lo 41°

    Times of clouds and sun

    Poor for home energy
    • Avg
      RealFeel
      49°
    • Hi
      RealFeel
      61°
    • Wind
      Speed
      13 mph
    more
Next Previous
Hi 55° RealFeel® 53° Precipitation 40%

Day

N

E

S

W

  • S 7 mph
  • Gusts: 13 mph

Some sunshine giving way to clouds with a shower in spots late in the afternoon

  • Max UV Index: 3 (Moderate)
  • Thunderstorms: 20%
  • Precipitation: 0.01 in
  • Rain: 0.01 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0.5 hrs
  • Hours of Rain: 0.5 hrs
Lo 45° RealFeel® 44° Precipitation 60%

Night

N

E

S

W

  • WSW 4 mph
  • Gusts: 8 mph

Plenty of clouds with spotty showers

  • Max UV Index: N/A
  • Thunderstorms: 20%
  • Precipitation: 0.08 in
  • Rain: 0.08 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 2 hrs
  • Hours of Rain: 2 hrs

Temperature History - Oct 23

more Historical Weather Data >
  Today Normal Record 10/23/2013
High 55° 58° N/A 44°
Low 45° 40° N/A 29°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:14 AM with 10:44 of sunlight, then sets at 5:58 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:53 AM with 11:06 of moolight, then sets at 5:59 PM

Grayslake Weather Report

Chicago: Temperatures to Gradually Rise Into the Weekend

October 21, 2014; 8:55 PM ET

Temperatures will gradually rise into the weekend in Chicago. 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.

Thu. Home Energy Efficiency

Thu. Degree Days

Thu. UV Index