• Tonight

    Dec 21

    Lo 28°

    Mostly cloudy

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

    Dec 22

    41°Lo 37°

    Mostly cloudy, afternoon rain

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

    Dec 23

    47°Lo 32°

    Cloudy with a shower

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

    Dec 24

    38°Lo 26°

    Colder with snow showers

    Low ragweed pollen levels
    • Precip
      61%
    • Wind
      Speed
      16 mph
    • Cloud
      Cover
      87%
    more
  • Thu

    Dec 25

    37°Lo 30°

    Mostly sunny and breezy

    Ragweed Pollen Weather
    • Precip
      8%
    • Wind
      Speed
      18 mph
    • Cloud
      Cover
      25%
    more
Next Previous
Hi 38° RealFeel® 27° Precipitation 47%

Day

N

E

S

W

  • SSE 12 mph
  • Gusts: 20 mph

A morning flurry; otherwise, mostly cloudy; watch for some freezing drizzle as well

  • Max UV Index: 1 (Low)
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0.0 in
  • Ice: 0 in
  • Hours of Precipitation: 0.5 hrs
  • Hours of Rain: 0 hrs
Lo 28° RealFeel® 15° Precipitation 19%

Night

N

E

S

W

  • SSE 12 mph
  • Gusts: 21 mph

Mostly cloudy

  • 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 - December 21

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

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - Dec 21

more Historical Weather Data >
  Today Normal Record 12/21/2013
High 38° 29° N/A 32°
Low 28° 14° N/A 24°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:19 AM with 9:05 of sunlight, then sets at 4:24 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:33 AM with 9:59 of moolight, then sets at 4:32 PM

Crystal Lake Weather Report

Chicago: Chance for a White Christmas as Pattern Turns Unsettled

December 21, 2014; 11:08 PM ET

There's a chance for a white Christmas around Chicagoland as next week turns unsettled. more >

Sun. Pollen

Sun. Dust & Dander

Sun. Wind Maps