• Today

    Aug 31

    85°Lo 67°

    Very warm with hazy sun

    Excellent for an outdoor bbq
    • Precip
      3%
    • Hi
      RealFeel
      91°
    • Wind
      Speed
      4 mph
  • Tue

    Sep 1

    89°Lo 68°

    Fog in the a.m.; mostly sunny

    Excellent for an outdoor bbq
    • Precip
      8%
    • Hi
      RealFeel
      95°
    • Wind
      Speed
      8 mph
    more
  • Wed

    Sep 2

    90°Lo 67°

    Partly sunny and very warm

    Excellent for an outdoor bbq
    • Precip
      9%
    • Hi
      RealFeel
      97°
    • Wind
      Speed
      7 mph
    more
  • Thu

    Sep 3

    89°Lo 65°

    Mostly sunny and very warm

    Excellent for an outdoor bbq
    • Precip
      7%
    • Hi
      RealFeel
      94°
    • Wind
      Speed
      6 mph
    more
  • Fri

    Sep 4

    89°Lo 65°

    Mostly sunny and very warm

    Excellent for an outdoor bbq
    • Precip
      7%
    • Hi
      RealFeel
      93°
    • Wind
      Speed
      6 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
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  3am 4am 5am 6am 7am 8am 9am 10am
Forecast
Fog
Fog
Fog
Fog
Fog
Hazy
Hazy
Hazy
Temp (°F) 61° 60° 59° 61° 61° 62° 66° 71°
RealFeel® 61° 61° 60° 62° 62° 66° 69° 76°
Humidity 93% 93% 99% 100% 100% 100% 87% 79%
   
  3am 4am 5am 6am 7am 8am 9am 10am
Rain
 
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  3am 4am 5am 6am 7am 8am 9am 10am
Wind (mph) 1 N 1 N 1 N 2 N 2 NNW 0 1 N 1 N
UV Index 0 0 0 0 0 1 1 2
Cloud Cover 60% 60% 60% 20% 0% 31% 71% 80%
Dew Point 59° 58° 59° 61° 61° 62° 62° 64°
Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F

Temperature History - Aug 31

more Historical Weather Data >
  Today Normal Record 8/31/2014
High 85° 78° N/A 82°
Low 67° 55° N/A 57°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:17 AM with 13:12 of sunlight, then sets at 7:29 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:42 PM with 13:02 of moolight, then sets at 9:44 AM

Crystal Lake Weather Report

Chicago: More Foggy Mornings in Store as Heat Holds on

August 31, 2015; 10:12 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.

Mon. Outdoor Entertaining

Mon. Wind Maps

Mon. UV Index