• Tonight

    Feb 6

    Lo 31°

    Mostly cloudy; breezy late

    Ragweed Pollen Weather
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Sun

    Feb 7

    43°Lo 25°

    Mostly cloudy and breezy

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

    Feb 8

    31°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 3°

    Colder with a few snowflakes

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

    Feb 10

    16°Lo 5°

    Partly sunny and very cold

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Hi 20° RealFeel® 4° Precipitation 59%

Day

N

E

S

W

  • NW 14 mph
  • Gusts: 20 mph

Rather cloudy, breezy and colder with a couple of flurries

  • Max UV Index: 1 (Low)
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0.0 in
  • Ice: 0 in
  • Hours of Precipitation: 2 hrs
  • Hours of Rain: 0 hrs
Lo 3° RealFeel® -11° Precipitation 5%

Night

N

E

S

W

  • NW 12 mph
  • Gusts: 17 mph

Turning out clear and frigid

  • Max UV Index: N/A
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Feb 9

more Historical Weather Data >
  Today Normal Record 2/9/2015
High 20° 30° N/A 26°
Low 12° N/A

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:58 AM with 10:20 of sunlight, then sets at 5:18 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 7:27 AM with 11:26 of moolight, then sets at 6:53 PM

Crystal Lake Weather Report

Chicago: Temperatures to fall through the week

February 6, 2016; 7:33 PM 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

Tue. Dust & Dander

Tue. Wind Maps