• Today

    Feb 5

    31°Lo 23°

    Mostly cloudy

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
  • Sat

    Feb 6

    39°Lo 30°

    Intervals of clouds and sun

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

    Feb 7

    40°Lo 27°

    A bit of snow and rain

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Mon

    Feb 8

    29°Lo 17°

    Cloudy, a bit of snow; colder

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

    Feb 9

    20°Lo 7°

    Cloudy, windy and colder

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Fri
6am
7am 8am 9am 10am 11am 12pm 1pm
  6am 7am 8am 9am 10am 11am 12pm 1pm
Forecast
Mostly Clear
Cloudy
Cloudy
Cloudy
Cloudy
Mostly Cloudy
Mostly Cloudy
Partly Cloudy
Temp (°F) 23° 21° 24° 24° 26° 28° 29° 30°
RealFeel® 19° 16° 17° 16° 20° 23° 27° 29°
Humidity 64% 81% 73% 77% 72% 65% 60% 57%
   
  6am 7am 8am 9am 10am 11am 12pm 1pm
Rain
 
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Snow
 
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Ice
 
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  6am 7am 8am 9am 10am 11am 12pm 1pm
Wind (mph) 6 NW 7 NNW 8 NW 8 NW 9 NW 8 WNW 7 W 7 NW
UV Index 0 0 0 0 1 2 2 2
Cloud Cover 10% 94% 94% 94% 90% 81% 78% 60%
Dew Point 13° 16° 17° 18° 19° 17° 17° 17°
Middle Grid line 35 F Middle Grid line 30 F Middle Grid line 25 F Middle Grid line 20 F

Temperature History - Feb 5

more Historical Weather Data >
  Today Normal Record 2/5/2015
High 31° 29° N/A 13°
Low 23° 11° N/A -18°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:03 AM with 10:10 of sunlight, then sets at 5:13 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:26 AM with 10:01 of moolight, then sets at 2:27 PM

Crystal Lake Weather Report

Chicago: Temperatures to rise through weekend

February 5, 2016; 5:14 AM ET

Chicago is in store for a dry and warmer weekend before the next round of winter weather early next week. more >

Health Weather

Jan 19, 2016; 10:05 AM ET How the weather impacts people's health

Fri. Pollen

Fri. Dust & Dander

Fri. Wind Maps