• Early AM

    May 27

    Lo 65°

    Mostly cloudy

    Running Weather
    • Precip
      25%
    • Hours of Precip
      0
    • Wind
      Gust
      9 mph
    more
  • Today

    May 27

    79°Lo 65°

    Couple of thunderstorms

    Good for running
    • Precip
      42%
    • Hours of Precip
      4
    • Wind
      Gust
      15 mph
  • Sat

    May 28

    79°Lo 64°

    A thunderstorm in the area

    Fair for running
    • Precip
      60%
    • Hours of Precip
      3
    • Wind
      Gust
      14 mph
    more
  • Sun

    May 29

    79°Lo 60°

    A thunderstorm in the area

    Fair for running
    • Precip
      12%
    • Hours of Precip
      1.5
    • Wind
      Gust
      9 mph
    more
  • Mon

    May 30

    82°Lo 57°

    Partly sunny and warm

    Very Good for running
    • Precip
      25%
    • Hours of Precip
      0
    • Wind
      Gust
      7 mph
    more
Next Previous
Next 8 hours >
  Fri
12am
1am 2am 3am 4am 5am 6am 7am
  12am 1am 2am 3am 4am 5am 6am 7am
Forecast
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Mostly Cloudy
Mostly Cloudy
Cloudy
Temp (°F) 70° 69° 68° 67° 66° 65° 66° 68°
RealFeel® 69° 68° 66° 65° 64° 64° 64° 68°
Humidity 79% 81% 81% 81% 83% 87% 86% 86%
   
  12am 1am 2am 3am 4am 5am 6am 7am
Rain
 
7%
 
6%
 
5%
 
5%
 
6%
 
7%
 
7%
 
5%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  12am 1am 2am 3am 4am 5am 6am 7am
Wind (mph) 5 NNE 5 NE 6 ENE 6 ESE 7 SE 7 SSE 7 SSE 7 SSE
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 92% 100% 98% 93% 90% 88% 88% 90%
Dew Point 63° 63° 61° 61° 61° 61° 62° 64°
Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F

Temperature History - May 27

more Historical Weather Data >
  Today Normal Record 5/27/2015
High 79° 74° N/A 74°
Low 65° 52° N/A 56°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:22 AM with 14:57 of sunlight, then sets at 8:19 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:18 AM with -19:-40 of moolight, then sets at 9:38 AM

Crystal Lake Weather Report

Chicago: Heat, humidity to unfold for Memorial Day

May 26, 2016; 11:12 PM ET

The unofficial start of summer will feel like the upcoming season on Monday in the Chicago area. 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.