• Early AM

    Apr 18

    Lo 39°

    Cloudy

    Dust & Dander Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Today

    Apr 18

    56°Lo 34°

    Partly sunny

    Moderate indoor dust & dander levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
  • Sat

    Apr 19

    66°Lo 43°

    Partly sunny

    Moderate indoor dust & dander levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Sun

    Apr 20

    73°Lo 51°

    Partly sunny

    Low indoor dust & dander levels
    • Precip
      19%
    • Wind
      Speed
      10 mph
    • Cloud
      Cover
      45%
    more
  • Mon

    Apr 21

    68°Lo 46°

    Mostly cloudy with showers

    Low indoor dust & dander levels
    • Precip
      86%
    • Wind
      Speed
      8 mph
    • Cloud
      Cover
      78%
    more
Next Previous
Hi 56° RealFeel® 62° Precipitation 0%

Day

N

E

S

W

  • NNE 6 mph
  • Gusts: 12 mph

Partly sunny

  • Max UV Index: 6 (High)
  • 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 34° RealFeel® 29° Precipitation 1%

Night

N

E

S

W

  • NE 6 mph
  • Gusts: 13 mph

Clear to partly 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 - April 18

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

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Moderate

  • Mold

    Pollen

    Low

Temperature History - Apr 18

more Historical Weather Data >
  Today Normal Record 4/18/2013
High 56° 58° N/A 61°
Low 34° 36° N/A 36°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:08 AM with 13:30 of sunlight, then sets at 7:38 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:26 PM with 9:56 of moolight, then sets at 9:22 AM

Top Story

Crystal Lake Weather Report

Chicago: Weekend Warmth on the Way

April 17, 2014; 5:44 PM ET

Despite a chilly Friday, seasonal warmth will return to the city right in time for the holiday weekend. more >

Is it a Cold or the Flu?

Apr 7, 2014; 5:00 AM ET Symptoms caused by the common cold can often resemble those associated with the influenza virus, so how do you differentiate between the two?

Fri. Pollen

Fri. Dust & Dander

Fri. Wind Maps