• Tonight

    Feb 7

    Lo 25°

    A bit of late-night snow

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

    Feb 8

    30°Lo 19°

    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

    21°Lo 6°

    Colder with a little snow

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

    Feb 10

    14°Lo 3°

    Very cold with clouds and sun

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

    Feb 11

    19°Lo 6°

    Sunshine and frigid

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Next 8 hours >
  Sun
7am
  7am
Forecast
Mostly Cloudy
Temp (°F) 34°
RealFeel® 21°
Humidity 77%
   
  7am
Rain
 
0%
Snow
 
0%
Ice
 
0%
   
  7am
Wind (mph) 16 SW
UV Index 0
Cloud Cover 89%
Dew Point 28°
Middle Grid line 35 F Middle Grid line 30 F

Temperature History - Feb 7

more Historical Weather Data >
  Today Normal Record 2/7/2015
High 42° 29° N/A 40°
Low 25° 12° N/A

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:00 AM with 10:15 of sunlight, then sets at 5:15 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:04 AM with 10:29 of moolight, then sets at 4:33 PM

Crystal Lake Weather Report

Wintry travel to spread across midwestern US through Monday

February 7, 2016; 9:49 PM ET

As the first of several waves of arctic air sweep southeastward across the Midwest, just enough snow will occur to cause slippery travel over a broad area into Monday. more >

Health Weather

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

Sun. Pollen

Sun. Dust & Dander

Sun. Wind Maps