• Today

    Apr 19

    65°Lo 42°

    Sunny much of the time

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

    Apr 20

    73°Lo 52°

    Partly sunny

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

    Apr 21

    69°Lo 45°

    A couple of thunderstorms

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

    Apr 22

    56°Lo 34°

    Cooler; a morning shower

    Low indoor dust & dander levels
    • Precip
      40%
    • Wind
      Speed
      12 mph
    • Cloud
      Cover
      60%
    more
  • Wed

    Apr 23

    58°Lo 40°

    Partly sunny

    Moderate indoor dust & dander levels
    • Precip
      10%
    • Wind
      Speed
      8 mph
    • Cloud
      Cover
      33%
    more
Next Previous
Mostly cloudy 61° Lo 51° RealFeel® 57° / 46°

N

E

S

W

  • Precipitation: 25%
  • Rain: 0 in
  • Snow: 0 in
  • Humidity: 89%
  • Cloud Cover: 77%
  • Dew Point: 53° F
  • Visibility: 6 mi
9 mph

Temperature History - Apr 21

more Historical Weather Data >
  Today Normal Record 4/21/2013
High 69° 59° N/A 48°
Low 45° 37° N/A 27°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:03 AM with 13:38 of sunlight, then sets at 7:41 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:13 AM with 10:15 of moolight, then sets at 11:28 AM

Top Story

Crystal Lake Weather Report

Chicago: Weekend Warmth on the Way

April 19, 2014; 3:14 AM ET

Seasonal warmth looks to make a return to Chicago right in time for the holiday weekend. more >

Is it a Cold or the Flu?

Apr 19, 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?

Mon. Dust & Dander

Mon. Wind Maps