• Today

    Mar 27

    32°Lo 13°

    A snow shower this morning

    Beneficial weather for asthma
    • Hi
      RealFeel
      21°
    • UV
      4 - Moderate
    • Air Qual.
      Good
  • Sat

    Mar 28

    37°Lo 23°

    Plenty of sun

    Beneficial weather for asthma
    • Hi
      RealFeel
      48°
    • UV
      5 - Moderate
    • Air Qual.
      Good
    more
  • Sun

    Mar 29

    45°Lo 33°

    Mostly cloudy, showers around

    Beneficial weather for asthma
    • Hi
      RealFeel
      34°
    • UV
      3 - Moderate
    • Air Qual.
      Good
    more
  • Mon

    Mar 30

    54°Lo 39°

    Sunny and milder

    Beneficial weather for asthma
    • Hi
      RealFeel
      54°
    • UV
      6 - High
    • Cloud
      Cover
      4%
    more
  • Tue

    Mar 31

    60°Lo 37°

    Breezy in the morning; sunny

    Beneficial weather for asthma
    • Hi
      RealFeel
      60°
    • UV
      6 - High
    • Cloud
      Cover
      10%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Fri
8am
9am 10am 11am 12pm 1pm 2pm 3pm
  8am 9am 10am 11am 12pm 1pm 2pm 3pm
Forecast
Partly Sunny
Mostly Cloudy
Partly Cloudy
Mostly Cloudy
Partly Cloudy
Flurries
Partly Cloudy
Partly Cloudy
Temp (°F) 21° 23° 25° 28° 29° 30° 31° 32°
RealFeel® 13° 16° 20° 21° 20° 21°
Humidity 61% 56% 50% 46% 43% 41% 40% 39%
   
  8am 9am 10am 11am 12pm 1pm 2pm 3pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
33%
 
33%
 
33%
 
34%
 
37%
 
40%
 
0%
 
0%
Ice
 
14%
 
14%
 
14%
 
14%
 
14%
 
9%
 
0%
 
0%
   
  8am 9am 10am 11am 12pm 1pm 2pm 3pm
Wind (mph) 14 NNE 14 N 15 N 16 N 15 N 15 N 18 N 17 N
UV Index 0 1 2 3 4 4 4 4
Cloud Cover 48% 80% 67% 76% 70% 65% 60% 54%
Dew Point 10°
Middle Grid line 35 F Middle Grid line 30 F Middle Grid line 25 F Middle Grid line 20 F

Temperature History - Mar 27

more Historical Weather Data >
  Today Normal Record 3/27/2014
High 32° 48° N/A 47°
Low 13° 27° N/A 32°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:45 AM with 12:28 of sunlight, then sets at 7:13 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:14 PM with 14:40 of moolight, then sets at 2:54 AM

Crystal Lake Weather Report

Chicago: Temperatures to Rebound Following Cold Start to the Weekend

March 27, 2015; 11:04 AM ET

Another surge of cold air is set to blast Chicago, bringing January-like temperatures to the area early this weekend. more >

Making a Forecast: The Sixth Sense

Feb 16, 2015; 5:00 AM ET What steps go into making a forecast?

Fri. Air Quality

Fri. Asthma Risk

Fri. UV Index