• Fri

    Feb 12

    21°Lo 10°

    Clearing and very cold

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

    Feb 13

    25°Lo 16°

    Partly sunny and cold

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

    Feb 14

    25°Lo 17°

    Snow or flurries possible

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

    Feb 15

    27°Lo 20°

    Partly sunny and cold

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

    Feb 16

    34°Lo 24°

    Cloudy

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Very cold 14° Lo 12° RealFeel® 9° / 8°

N

E

S

W

  • Precipitation: 5%
  • Rain: 0 in
  • Snow: 0 in
  • Humidity: 34%
  • Cloud Cover: 36%
  • Dew Point: -11° F
  • Visibility: 10 mi
6 mph

Temperature History - Feb 12

more Historical Weather Data >
  Today Normal Record 2/12/2015
High 21° 31° N/A 13°
Low 10° 13° N/A -4°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:54 AM with 10:28 of sunlight, then sets at 5:22 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 9:17 AM with 13:11 of moolight, then sets at 10:28 PM

Crystal Lake Weather Report

Chicago: Temperatures to fall through the week

February 7, 2016; 5:08 AM ET

Colder air will follow winter weather early in the week across the Chicago region. more >

Health Weather

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