• Today

    Jul 31

    86°Lo 60°

    Sunshine and patchy clouds

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      87°
    • UV
      5 - High
    • Cloud
      Cover
      25%
  • Sat

    Aug 1

    84°Lo 62°

    Mostly sunny and pleasant

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      86°
    • UV
      5 - High
    • Cloud
      Cover
      15%
    more
  • Sun

    Aug 2

    85°Lo 67°

    Variably cloudy, a t-storm

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      89°
    • UV
      5 - High
    • Cloud
      Cover
      70%
    more
  • Mon

    Aug 3

    84°Lo 60°

    A morning t-storm in spots

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      86°
    • UV
      5 - High
    • Cloud
      Cover
      46%
    more
  • Tue

    Aug 4

    81°Lo 60°

    Partly sunny and pleasant

    Neutral weather for sinus headaches
    • Hi
      RealFeel
      86°
    • UV
      5 - High
    • Cloud
      Cover
      49%
    more
Next Previous
Hi 86° RealFeel® 87° Precipitation 4%

Day

N

E

S

W

  • WNW 12 mph
  • Gusts: 23 mph

Sunshine and patchy clouds

  • Max UV Index: 7 (High)
  • Thunderstorms: 2%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 60° RealFeel® 58° Precipitation 11%

Night

N

E

S

W

  • W 7 mph
  • Gusts: 14 mph

Mainly clear

  • Max UV Index: N/A
  • Thunderstorms: 7%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Jul 31

more Historical Weather Data >
  Today Normal Record 7/31/2014
High 86° 81° N/A 83°
Low 60° 64° N/A 58°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:43 AM with 14:30 of sunlight, then sets at 8:13 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:14 PM with 10:58 of moolight, then sets at 7:12 AM

Grayslake Weather Report

Chicago: Unsettled Weather to Make Early-Week Return

July 31, 2015; 2:37 PM ET

Temperatures will stay in the 80s, with the daytime high slowly working its way into the low 80s by Monday. 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!

Fri. Sinus Headache

Fri. UV Index