• Tonight

    Mar 1

    Lo 8°

    Partly cloudy and frigid

    Ragweed Pollen Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
  • Mon

    Mar 2

    26°Lo 22°

    Mostly sunny and cold

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

    Mar 3

    37°Lo 7°

    Snow mixing with rain; breezy

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

    Mar 4

    15°Lo -3°

    Mainly cloudy and much colder

    Low ragweed pollen levels
    • Precip
      11%
    • Wind
      Speed
      18 mph
    • Cloud
      Cover
      76%
    more
  • Thu

    Mar 5

    15°Lo 4°

    Mostly sunny and frigid

    Ragweed Pollen Weather
    • Precip
      5%
    • Wind
      Speed
      10 mph
    • Cloud
      Cover
      11%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
7am
8am
  7am 8am
Forecast
Cloudy
Cloudy
Temp (°F) 13° 15°
RealFeel® 17° 19°
Humidity 85% 83%
   
  7am 8am
Rain
 
0%
 
0%
Snow
 
7%
 
7%
Ice
 
0%
 
0%
   
  7am 8am
Wind (mph) 1 NNW 2 NNW
UV Index 0 0
Cloud Cover 95% 95%
Dew Point 10° 11°
Middle Grid line 20 F Middle Grid line 15 F Middle Grid line 10 F

Temperature History - Mar 1

more Historical Weather Data >
  Today Normal Record 3/1/2014
High 26° 36° N/A 20°
Low 18° N/A

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:29 AM with 11:14 of sunlight, then sets at 5:43 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:15 PM with 14:18 of moolight, then sets at 4:33 AM

Crystal Lake Weather Report

Chicago: Wintry Mix to Precede Harsh Cold

March 1, 2015; 11:45 PM 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?

Sun. Pollen

Sun. Dust & Dander

Sun. Wind Maps