• Today

    Feb 28

    21°Lo 13°

    Partly sunny and very cold

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

    Mar 1

    27°Lo 8°

    Cloudy, a bit of snow; cold

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

    Mar 2

    26°Lo 20°

    Mostly sunny and cold

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

    Mar 3

    39°Lo 13°

    A wintry mix changing to rain

    Low ragweed pollen levels
    • Precip
      86%
    • Wind
      Speed
      17 mph
    • Cloud
      Cover
      99%
  • Wed

    Mar 4

    17°Lo -3°

    Mostly cloudy and much colder

    Ragweed Pollen Weather
    • Precip
      25%
    • Wind
      Speed
      16 mph
    • Cloud
      Cover
      70%
    more
Next Previous
Hi 39° RealFeel® 24° Precipitation 86%

Day

N

E

S

W

  • WSW 17 mph
  • Gusts: 26 mph

Cloudy and breezy with rain, a little wintry mix early with little or no accumulation

  • Max UV Index: 0 (Low)
  • Thunderstorms: 10%
  • Precipitation: 0.72 in
  • Rain: 0.49 in
  • Snow: 0.1 in
  • Ice: 0.22 in
  • Hours of Precipitation: 8 hrs
  • Hours of Rain: 6.5 hrs
Lo 13° RealFeel® -7° Precipitation 50%

Night

N

E

S

W

  • NW 20 mph
  • Gusts: 29 mph

A shower in spots in the evening; cloudy, brisk and bitterly cold

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

Temperature History - Mar 3

more Historical Weather Data >
  Today Normal Record 3/3/2014
High 39° 37° N/A 17°
Low 13° 18° N/A -10°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:26 AM with 11:19 of sunlight, then sets at 5:45 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:08 PM with 13:31 of moolight, then sets at 5:39 AM

Crystal Lake Weather Report

Chicago: Snow Looms for Late Weekend as Cold Air Lingers

February 28, 2015; 1:24 AM ET

The Chicago area will continue to endure a cold air into late in the weekend as the next round of snow could hit the region on Sunday. more >

Making a Forecast: The Sixth Sense

Feb 16, 2015; 5:00 AM ET What steps go into making a forecast?

Tue. Dust & Dander

Tue. Wind Maps