• Today

    Sep 1

    89°Lo 69°

    Hazy sun, very warm and humid

    Very Good for biking
    • Precip
      25%
    • Hours of Precip
      0
    • Wind
      Gust
      14 mph
    more
  • Wed

    Sep 2

    89°Lo 67°

    Fog in the a.m.; partly sunny

    Very Good for biking
    • Precip
      12%
    • Hours of Precip
      0
    • Wind
      Gust
      10 mph
    more
  • Thu

    Sep 3

    88°Lo 67°

    Partly sunny and very warm

    Very Good for biking
    • Precip
      12%
    • Hours of Precip
      0
    • Wind
      Gust
      7 mph
  • Fri

    Sep 4

    88°Lo 65°

    Mostly sunny, warm and humid

    Very Good for biking
    • Precip
      8%
    • Hours of Precip
      0
    • Wind
      Gust
      12 mph
    more
  • Sat

    Sep 5

    86°Lo 61°

    Sunshine and remaining warm

    Excellent for biking
    • Precip
      7%
    • Hours of Precip
      0
    • Wind
      Gust
      15 mph
    more
Next Previous
Mainly clear 71° Lo 67° RealFeel® 71° / 67°

N

E

S

W

  • Precipitation: 18%
  • Rain: 0 in
  • Snow: 0 in
  • Humidity: 86%
  • Cloud Cover: 28%
  • Dew Point: 65° F
  • Visibility: 10 mi
4 mph

Temperature History - Sep 3

more Historical Weather Data >
  Today Normal Record 9/3/2014
High 88° 77° N/A 80°
Low 67° 54° N/A 49°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:20 AM with 13:04 of sunlight, then sets at 7:24 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 10:42 PM with 14:28 of moolight, then sets at 1:10 PM

Crystal Lake Weather Report

Chicago: More Foggy Mornings in Store as Heat Holds on

September 1, 2015; 4:41 AM ET

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

Is Your Outdoor Gear Waterproof?

Dec 5, 2012; 5:00 AM ET Now that it's cold enough to hit the slopes, you may want to look more closely at what materials your winter sports gear is made of. As it turns out, not all waterproofing is created equal.