• Early AM

    Sep 20

    Lo 59°

    Mostly cloudy

    Ragweed Pollen Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Today

    Sep 20

    76°Lo 57°

    Heavy thunderstorms

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

    Sep 21

    65°Lo 44°

    Cooler with clouds breaking

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      0 - Low
  • Mon

    Sep 22

    68°Lo 46°

    Times of clouds and sun

    Low ragweed pollen levels
    • Precip
      0%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      46%
    more
  • Tue

    Sep 23

    73°Lo 47°

    Mostly sunny and pleasant

    Low ragweed pollen levels
    • Precip
      5%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      11%
    more
Next Previous
Colder 56° Lo 49° RealFeel® 50° / 46°

N

E

S

W

  • Precipitation: 0%
  • Rain: 0 in
  • Snow: 0 in
  • Humidity: 81%
  • Cloud Cover: 3%
  • Dew Point: 46° F
  • Visibility: 10 mi
6 mph

Temperature History - Sep 21

more Historical Weather Data >
  Today Normal Record 9/21/2013
High 65° 70° N/A 60°
Low 44° 46° N/A 43°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:39 AM with 12:14 of sunlight, then sets at 6:53 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:11 AM with 13:19 of moolight, then sets at 5:30 PM

Top Story

Crystal Lake Weather Report

Chicago: Thunderstorms to Precede More Cool Air

September 20, 2014; 2:18 AM ET

Chicago is facing the threat of some disruptive thunderstorms on Saturday. more >

Sun. Pollen

Sun. Dust & Dander

Sun. Wind Maps