• Today

    Mar 5

    15°Lo 1°

    Sunny and frigid

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

    Mar 6

    27°Lo 24°

    Breezy with periods of sun

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

    Mar 7

    38°Lo 22°

    Periods of sun; not as cold

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

    Mar 8

    37°Lo 23°

    Times of clouds and sun

    Low ragweed pollen levels
    • Precip
      6%
    • Wind
      Speed
      10 mph
    • Cloud
      Cover
      46%
    more
  • Mon

    Mar 9

    39°Lo 28°

    Partly sunny

    Ragweed Pollen Weather
    • Precip
      5%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      35%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Thu
3am
4am 5am 6am 7am 8am 9am 10am
  3am 4am 5am 6am 7am 8am 9am 10am
Forecast
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Sunny
Mostly Sunny
Sunny
Sunny
Temp (°F) -1° -2°
RealFeel® -5° -4° -9° -12° -6° -4°
Humidity 68% 65% 68% 69% 72% 70% 60% 56%
   
  3am 4am 5am 6am 7am 8am 9am 10am
Rain
 
0%
 
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0%
 
0%
Snow
 
0%
 
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Ice
 
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  3am 4am 5am 6am 7am 8am 9am 10am
Wind (mph) 7 NW 6 NNW 7 NNW 8 NNW 6 WSW 6 W 7 NW 8 NW
UV Index 0 0 0 0 0 1 2 3
Cloud Cover 36% 40% 35% 30% 39% 26% 9% 9%
Dew Point -5° -7° -8° -8° -9° -8° -6° -4°
Middle Grid line 10 F Middle Grid line 5 F Middle Grid line 0 F

Temperature History - Mar 5

more Historical Weather Data >
  Today Normal Record 3/5/2014
High 15° 38° N/A 19°
Low 19° N/A

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:23 AM with 11:25 of sunlight, then sets at 5:48 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:01 PM with 12:35 of moolight, then sets at 6:36 AM

Crystal Lake Weather Report

Chicago: Weekend to Welcome Springlike Temperatures

March 5, 2015; 1:56 PM ET

After a frigid workweek in Chicago, the weekend will usher in springlike temperatures across the region. more >

Making a Forecast: The Sixth Sense

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

Thu. Pollen

Thu. Dust & Dander

Thu. Wind Maps