• Tonight

    Aug 31

    Lo 66°

    Mainly clear, warm; fog late

    Asthma Weather
    • Hi
      RealFeel
      88°
    • UV
      4 - Moderate
    • Air Qual.
      Good
    more
  • Tue

    Sep 1

    89°Lo 67°

    Fog in the a.m.; mostly sunny

    Beneficial weather for asthma
    • Hi
      RealFeel
      95°
    • UV
      5 - High
    • Air Qual.
      Moderate
    more
  • Wed

    Sep 2

    90°Lo 67°

    Partly sunny, warm and humid

    Beneficial weather for asthma
    • Hi
      RealFeel
      96°
    • UV
      5 - High
    • Air Qual.
      Moderate
    more
  • Thu

    Sep 3

    89°Lo 66°

    Partly sunny and very warm

    Beneficial weather for asthma
    • Hi
      RealFeel
      94°
    • UV
      5 - High
    • Air Qual.
      Moderate
  • Fri

    Sep 4

    87°Lo 65°

    Sunshine and very warm

    Beneficial weather for asthma
    • Hi
      RealFeel
      92°
    • UV
      5 - High
    • Air Qual.
      Moderate
    more
Next Previous
Hi 89° RealFeel® 94° Precipitation 6%

Day

N

E

S

W

  • SSW 6 mph
  • Gusts: 8 mph

Partly sunny and very warm

  • Max UV Index: 6 (High)
  • Thunderstorms: 24%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 66° RealFeel® 65° Precipitation 8%

Night

N

E

S

W

  • SSE 4 mph
  • Gusts: 7 mph

Clear

  • Max UV Index: N/A
  • Thunderstorms: 24%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Sep 3

more Historical Weather Data >
  Today Normal Record 9/3/2014
High 89° 77° N/A 81°
Low 66° 59° N/A 59°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:19 AM with 13:04 of sunlight, then sets at 7:23 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 10:41 PM with 14:28 of moolight, then sets at 1:09 PM

Grayslake Weather Report

Chicago: More Foggy Mornings in Store as Heat Holds on

August 31, 2015; 9:17 PM ET

Chicagoans can expect to begin September with a stretch of higher temperatures, increasing humidity and more foggy mornings. more >

The Dangers of Bus Travel

Dec 10, 2012; 5:00 AM ET While bus transportation is one of the most affordable, it is important to know which motor coach companies rank highest in safety.

Thu. Asthma Risk

Thu. UV Index