• Today

    Jul 31

    81°Lo 58°

    A thunderstorm in spots

    Very Good for an outdoor bbq
    • Precip
      40%
    • Hi
      RealFeel
      82°
    • Wind
      Gust
      19 mph
    more
  • Fri

    Aug 1

    81°Lo 58°

    A t-storm in the afternoon

    Excellent for an outdoor bbq
    • Precip
      56%
    • Hi
      RealFeel
      88°
    • Wind
      Gust
      5 mph
  • Sat

    Aug 2

    81°Lo 55°

    Some sun with a thunderstorm

    Very Good for an outdoor bbq
    • Precip
      57%
    • Hi
      RealFeel
      88°
    • Wind
      Gust
      5 mph
    more
  • Sun

    Aug 3

    82°Lo 60°

    Partly sunny and pleasant

    Excellent for an outdoor bbq
    • Precip
      10%
    • Hi
      RealFeel
      90°
    • Wind
      Gust
      4 mph
    more
  • Mon

    Aug 4

    82°Lo 62°

    A thunderstorm possible

    Very Good for an outdoor bbq
    • Precip
      30%
    • Hi
      RealFeel
      90°
    • Wind
      Gust
      7 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Fri
1am
2am 3am 4am 5am 6am 7am 8am
  1am 2am 3am 4am 5am 6am 7am 8am
Forecast
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Sunny
Mostly Sunny
Partly Sunny
Temp (°F) 63° 61° 60° 59° 58° 60° 62° 66°
RealFeel® 61° 60° 58° 58° 57° 59° 61° 65°
Humidity 82% 83% 86% 88% 92% 93% 89% 81%
   
  1am 2am 3am 4am 5am 6am 7am 8am
Rain
 
28%
 
20%
 
20%
 
20%
 
20%
 
20%
 
16%
 
7%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  1am 2am 3am 4am 5am 6am 7am 8am
Wind (mph) 3 W 3 SW 3 SW 3 SW 3 SW 3 WSW 3 WSW 3 WSW
UV Index 0 0 0 0 0 0 0 1
Cloud Cover 26% 26% 26% 26% 26% 26% 26% 46%
Dew Point 57° 56° 56° 56° 56° 58° 59° 60°
Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F

Temperature History - Aug 1

more Historical Weather Data >
  Today Normal Record 8/1/2013
High 81° 80° N/A 74°
Low 58° 60° N/A 55°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:46 AM with 14:27 of sunlight, then sets at 8:13 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:17 AM with 11:32 of moolight, then sets at 10:49 PM

Top Story

Crystal Lake Weather Report

Late-Week Thunderstorms in Store for Chicago

July 31, 2014; 2:58 AM ET

Thunderstorms will move into the Chicago area later this week, and the threat for storms will remain into the weekend. 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.

Fri. Outdoor Entertaining

Fri. Wind Maps

Fri. UV Index