• Tonight

    Jul 29

    Lo 56°

    A shower early; partly cloudy

    Running Weather
    • Precip
      35%
    • Hours of Precip
      0.5
    • Wind
      Gust
      19 mph
    more
  • Wed

    Jul 30

    77°Lo 56°

    Clouds and sun with a shower

    Good for running
    • Precip
      56%
    • Hours of Precip
      1
    • Wind
      Gust
      9 mph
    more
  • Thu

    Jul 31

    81°Lo 58°

    Thunderstorm

    Good for running
    • Precip
      52%
    • Hours of Precip
      1.5
    • Wind
      Gust
      11 mph
    more
  • Fri

    Aug 1

    80°Lo 58°

    Periods of sun with a t-storm

    Good for running
    • Precip
      57%
    • Hours of Precip
      2
    • Wind
      Gust
      7 mph
  • Sat

    Aug 2

    82°Lo 56°

    Partly sunny with a t-storm

    Good for running
    • Precip
      55%
    • Hours of Precip
      1
    • Wind
      Gust
      8 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Fri
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
T-storms
Partly Sunny
Partly Sunny
Partly Cloudy
Partly Sunny
Partly Sunny
T-storms
Partly Sunny
Temp (°F) 67° 70° 73° 74° 77° 80° 76° 77°
RealFeel® 65° 74° 78° 79° 83° 85° 80° 81°
Humidity 77% 71% 65% 60% 54% 51% 69% 63%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
51%
 
47%
 
15%
 
15%
 
19%
 
47%
 
51%
 
47%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 5 W 5 W 5 W 6 WSW 6 WSW 6 WSW 5 W 5 W
UV Index 2 4 5 6 7 6 5 4
Cloud Cover 70% 46% 46% 70% 46% 46% 70% 46%
Dew Point 59° 60° 61° 60° 59° 60° 65° 64°
Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F

Temperature History - Aug 1

more Historical Weather Data >
  Today Normal Record 8/1/2013
High 80° 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 29, 2014; 8:38 PM ET

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

Avoid the Winter Workout Blues

Dec 26, 2012; 5:00 AM ET When it's snowing or cold, most of us want nothing more than to keep warm on the couch. But Violeta Yas has some tips to help you sneak in mini workouts at the office, regardless of the weather.