• Tonight

    Apr 18

    Lo 47°

    Cloudy and breezy

    Ragweed Pollen Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
  • Sun

    Apr 19

    61°Lo 45°

    Rain, becoming heavy; cooler

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more
  • Mon

    Apr 20

    56°Lo 35°

    Windy; a shower in the a.m.

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more
  • Tue

    Apr 21

    54°Lo 34°

    Variable clouds; windy, cool

    Low ragweed pollen levels
    • Precip
      25%
    • Wind
      Speed
      24 mph
    • Cloud
      Cover
      74%
    more
  • Wed

    Apr 22

    53°Lo 31°

    Breezy with variable clouds

    Ragweed Pollen Weather
    • Precip
      11%
    • Wind
      Speed
      16 mph
    • Cloud
      Cover
      70%
    more
Next Previous
Hi 65° RealFeel® 67° Precipitation 16%

Day

N

E

S

W

  • NE 14 mph
  • Gusts: 26 mph

More clouds than sun, breezy and not as warm

  • Max UV Index: 6 (High)
  • Thunderstorms: 6%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 47° RealFeel® 38° Precipitation 25%

Night

N

E

S

W

  • E 14 mph
  • Gusts: 23 mph

Breezy with considerable cloudiness

  • Max UV Index: N/A
  • Thunderstorms: 24%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Crystal Lake Pollen Levels - April 18

  • Extreme
  • Very High
  • High
  • Moderate
  • Low
  • Grass

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    High

  • Mold

    Pollen

    Low

Temperature History - Apr 18

more Historical Weather Data >
  Today Normal Record 4/18/2014
High 65° 58° N/A 56°
Low 47° 36° N/A 30°

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 6:09 AM with 13:37 of moolight, then sets at 7:46 PM

Crystal Lake Weather Report

Chicago: Rain to Span Second Half of Weekend

April 18, 2015; 6:11 PM ET

The second half of the weekend will see a combination of lower temperatures and significant rainfall, but Chicago will slowly pull out of the damp, cooler conditions through the new week. more >

Sat. Pollen

Sat. Dust & Dander

Sat. Wind Maps