• Mon

    Feb 15

    31°Lo 20°

    Mostly cloudy and not as cold

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

    Feb 16

    31°Lo 20°

    Snow or flurries possible

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

    Feb 17

    32°Lo 27°

    Clouds and sun with flurries

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

    Feb 18

    41°Lo 30°

    Overcast and colder

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

    Feb 19

    41°Lo 22°

    Rain possible, some ice early

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Hi 31° RealFeel® 25° Precipitation 13%

Day

N

E

S

W

  • SSW 10 mph
  • Gusts: 16 mph

Mostly cloudy and not as cold

  • Max UV Index: 2 (Low)
  • Thunderstorms: 1%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 20° RealFeel® 12° Precipitation 11%

Night

N

E

S

W

  • SW 9 mph
  • Gusts: 15 mph

Mostly cloudy

  • Max UV Index: N/A
  • Thunderstorms: 1%
  • 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 15

more Historical Weather Data >
  Today Normal Record 2/15/2015
High 31° 32° N/A 14°
Low 20° 13° N/A -9°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:50 AM with 10:36 of sunlight, then sets at 5:26 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:16 AM with 14:34 of moolight, then sets at 1:50 AM

Crystal Lake Weather Report

Chicago: Cold air to blast region through weekend

February 10, 2016; 4:35 AM ET

Cold air will grip the Chicago area into the weekend with temperatures up to 15 degrees Fahrenheit below average for this time of year. more >