• Tonight

    Sep 1

    Lo 68°

    Patchy clouds, warm; fog late

    Sinus Headache Weather
    • Hi
      RealFeel
      94°
    • UV
      4 - Moderate
    • Cloud
      Cover
      35%
    more
  • Wed

    Sep 2

    89°Lo 68°

    Fog in the a.m.; partly sunny

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      95°
    • UV
      4 - Moderate
    • Cloud
      Cover
      44%
    more
  • Thu

    Sep 3

    86°Lo 67°

    Partly sunny and very warm

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      95°
    • UV
      5 - High
    • Cloud
      Cover
      41%
    more
  • Fri

    Sep 4

    85°Lo 65°

    Mostly sunny, warm and humid

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      92°
    • UV
      5 - High
    • Cloud
      Cover
      24%
    more
  • Sat

    Sep 5

    85°Lo 59°

    Sunshine, very warm and humid

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      91°
    • UV
      4 - Moderate
    • Cloud
      Cover
      24%
Next Previous
Mostly sunny 82° Lo 68° RealFeel® 88° / 68°

N

E

S

W

  • Precipitation: 7%
  • Rain: 0 in
  • Snow: 0 in
  • Humidity: 72%
  • Cloud Cover: 25%
  • Dew Point: 65° F
  • Visibility: 10 mi
7 mph

Temperature History - Sep 5

more Historical Weather Data >
  Today Normal Record 9/5/2014
High 85° 77° N/A 79°
Low 59° 54° N/A 58°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:22 AM with 12:59 of sunlight, then sets at 7:21 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:46 AM with 10:23 of moolight, then sets at 2:10 PM

Crystal Lake Weather Report

Chicago: More Foggy Mornings in Store as Heat Holds on

September 1, 2015; 5:41 PM ET

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

Sat. Sinus Headache

Sat. UV Index