• Wed

    Feb 17

    21°Lo 7°

    Colder with a chance for snow

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

    Feb 18

    35°Lo 25°

    Clouds and sun; not as cold

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

    Feb 19

    42°Lo 29°

    Milder with a shower possible

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

    Feb 20

    41°Lo 28°

    Rain possible, some ice early

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

    Feb 21

    37°Lo 16°

    Clouds limiting sun

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Hi 35° RealFeel® 25° Precipitation 8%

Day

N

E

S

W

  • SSE 12 mph
  • Gusts: 18 mph

Not as cold with intervals of clouds and sunshine

  • 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 25° RealFeel® 10° Precipitation 55%

Night

N

E

S

W

  • S 14 mph
  • Gusts: 21 mph

Mainly cloudy and breezy; a shower in spots in the evening followed by a bit of ice late

  • Max UV Index: N/A
  • Thunderstorms: 20%
  • Precipitation: 0.04 in
  • Rain: 0.01 in
  • Snow: 0 in
  • Ice: 0.03 in
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 0.5 hrs

Temperature History - Feb 18

more Historical Weather Data >
  Today Normal Record 2/18/2015
High 35° 32° N/A
Low 25° 14° N/A -9°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:46 AM with 10:43 of sunlight, then sets at 5:29 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:49 PM with 14:43 of moolight, then sets at 4:32 AM

Crystal Lake Weather Report

Chicago: Dangerous cold to hold through weekend

February 12, 2016; 8:24 AM ET

Conditions will continue to be dangerously cold into the weekend in the Chicago area. more >