• Today

    Mar 3

    37°Lo 8°

    Snow and ice, then rain

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Wed

    Mar 4

    14°Lo -3°

    Clouds and sun; much colder

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Thu

    Mar 5

    12°Lo 2°

    Sunny, but frigid

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Fri

    Mar 6

    33°Lo 27°

    Partly sunny and not as cold

    Low ragweed pollen levels
    • Precip
      14%
    • Wind
      Speed
      22 mph
    • Cloud
      Cover
      41%
  • Sat

    Mar 7

    36°Lo 15°

    Partial sunshine

    Ragweed Pollen Weather
    • Precip
      23%
    • Wind
      Speed
      12 mph
    • Cloud
      Cover
      46%
    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
Partly Sunny
Partly Sunny
Mostly Sunny
Mostly Sunny
Partly Sunny
Partly Sunny
Partly Cloudy
Partly Cloudy
Temp (°F) 17° 20° 24° 27° 28° 30° 32° 33°
RealFeel® -5° 10° 12° 14° 16° 16°
Humidity 61% 60% 60% 62% 62% 63% 63% 63%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
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0%
 
0%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 22 SSW 23 SW 23 SW 24 SW 24 SW 23 SW 23 SW 21 SW
UV Index 2 3 4 4 4 3 2 1
Cloud Cover 37% 32% 26% 20% 31% 42% 53% 59%
Dew Point 12° 15° 17° 19° 21° 21°
Middle Grid line 35 F Middle Grid line 30 F Middle Grid line 25 F Middle Grid line 20 F Middle Grid line 15 F

Temperature History - Mar 6

more Historical Weather Data >
  Today Normal Record 3/6/2014
High 33° 38° N/A 28°
Low 27° 20° N/A -8°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:21 AM with 11:28 of sunlight, then sets at 5:49 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:58 PM with 12:06 of moolight, then sets at 7:04 AM

Crystal Lake Weather Report

Chicago: Wintry Mix to Precede Harsh Cold

March 3, 2015; 3:15 AM ET

While Chicago will escape the brunt of a snowstorm moving from the Rockies to the Midwest, the city will still see some wintry precipitation early this week. more >

Making a Forecast: The Sixth Sense

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

Fri. Dust & Dander

Fri. Wind Maps