• Tonight

    Apr 18

    Lo 34°

    Clear to partly cloudy

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

    Apr 19

    66°Lo 43°

    Mostly sunny and breezy

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

    Apr 20

    72°Lo 51°

    Partly sunny

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

    Apr 22

    62°Lo 35°

    Chance of a morning shower

    Low indoor dust & dander levels
    • Precip
      30%
    • Wind
      Speed
      13 mph
    • Cloud
      Cover
      51%
    more
Next Previous
Partly cloudy 65° Lo 57° RealFeel® 60° / 52°

N

E

S

W

  • Precipitation: 25%
  • Rain: 0 in
  • Snow: 0 in
  • Humidity: 63%
  • Cloud Cover: 34%
  • Dew Point: 47° F
  • Visibility: 10 mi
8 mph

Temperature History - Apr 20

more Historical Weather Data >
  Today Normal Record 4/20/2013
High 72° 58° N/A 43°
Low 51° 36° N/A 23°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:05 AM with 13:35 of sunlight, then sets at 7:40 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:22 AM with 10:00 of moolight, then sets at 10:22 AM

Top Story

Crystal Lake Weather Report

Chicago: Weekend Warmth on the Way

April 18, 2014; 4:14 AM 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?

Sun. Dust & Dander

Sun. Wind Maps