• Early AM

    Apr 18

    Lo 39°

    Mostly 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°

    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
    • 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
Mainly clear 37° Lo 34° RealFeel® 32° / 29°

N

E

S

W

  • Precipitation: 1%
  • Rain: 0 in
  • Snow: 0 in
  • Humidity: 73%
  • Cloud Cover: 25%
  • Dew Point: 28° F
  • Visibility: 10 mi
6 mph

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 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?

Fri. Pollen

Fri. Dust & Dander

Fri. Wind Maps