• Early AM

    Sep 17

    Lo 43°

    Clear

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

    Sep 17

    69°Lo 47°

    Mostly sunny and pleasant

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

    Sep 18

    67°Lo 49°

    Mostly sunny and pleasant

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

    Sep 19

    73°Lo 61°

    Times of clouds and sun

    Low ragweed pollen levels
    • Precip
      5%
    • Wind
      Speed
      10 mph
    • Cloud
      Cover
      46%
    more
  • Sat

    Sep 20

    78°Lo 59°

    A couple of p.m. t-storms

    Low ragweed pollen levels
    • Precip
      63%
    • Wind
      Speed
      13 mph
    • Cloud
      Cover
      78%
Next Previous
Mostly cloudy 64° Lo 59° RealFeel® 59° / 54°

N

E

S

W

  • Precipitation: 25%
  • Rain: 0 in
  • Snow: 0 in
  • Humidity: 89%
  • Cloud Cover: 71%
  • Dew Point: 58° F
  • Visibility: 9 mi
8 mph

Temperature History - Sep 20

more Historical Weather Data >
  Today Normal Record 9/20/2013
High 78° 71° N/A 73°
Low 59° 47° N/A 53°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:38 AM with 12:16 of sunlight, then sets at 6:54 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:15 AM with 13:45 of moolight, then sets at 5:00 PM

Top Story

Crystal Lake Weather Report

Chicago: Cooler, Fall-Like Temperatures to Linger

September 16, 2014; 9:12 AM ET

The cooler, below-average conditions responsible for the fall-like feel will hold through the end of the week over the Chicago area. more >

Sat. Dust & Dander

Sat. Wind Maps