• Tonight

    Feb 26

    Lo -7°

    Partly cloudy; bitterly cold

    Ragweed Pollen Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
  • Fri

    Feb 27

    13°Lo -4°

    Sunny, but frigid

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

    Feb 28

    19°Lo 13°

    Mostly sunny and frigid

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

    Mar 1

    27°Lo 10°

    Cold with periods of snow

    Low ragweed pollen levels
    • Precip
      65%
    • Wind
      Speed
      9 mph
    • Cloud
      Cover
      94%
    more
  • Mon

    Mar 2

    30°Lo 25°

    Mostly cloudy and cold

    Ragweed Pollen Weather
    • Precip
      20%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      72%
    more
Next Previous
Hi 17° RealFeel® 3° Precipitation 25%

Day

N

E

S

W

  • N 13 mph
  • Gusts: 25 mph

Turning sharply colder with periods of clouds and sunshine

  • Max UV Index: 3 (Moderate)
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo -7° RealFeel® -16° Precipitation 1%

Night

N

E

S

W

  • NW 7 mph
  • Gusts: 13 mph

Partly cloudy and bitterly cold; extreme cold can be dangerous for outdoor activities

  • 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

Crystal Lake Pollen Levels - February 26

  • Extreme
  • Very High
  • High
  • Moderate
  • Low
  • Grass

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - Feb 26

more Historical Weather Data >
  Today Normal Record 2/26/2014
High 17° 35° N/A 13°
Low -7° 17° N/A -6°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:34 AM with 11:05 of sunlight, then sets at 5:39 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:37 AM with 14:48 of moolight, then sets at 2:25 AM

Crystal Lake Weather Report

Chicago: Snow Looms for Late Weekend as Cold Air Lingers

February 26, 2015; 6:10 PM 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?

Thu. Pollen

Thu. Dust & Dander

Thu. Wind Maps