• Early AM

    May 27

    Lo 65°

    Mostly cloudy

    Ragweed Pollen Weather
    • Grass
      Pollen
      5 - High
    • Ragweed
      Pollen
      3 - Moderate
    • Tree
      Pollen
      5 - High
    more
  • Today

    May 27

    79°Lo 65°

    Couple of thunderstorms

    Low ragweed pollen levels
    • Grass
      Pollen
      5 - High
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      5 - High
    more
  • Sat

    May 28

    79°Lo 64°

    A thunderstorm in the area

    Low ragweed pollen levels
    • Grass
      Pollen
      5 - High
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      5 - High
  • Sun

    May 29

    79°Lo 60°

    A thunderstorm in the area

    Moderate ragweed pollen levels
    • Grass
      Pollen
      5 - High
    • Ragweed
      Pollen
      3 - Moderate
    • Tree
      Pollen
      5 - High
    more
  • Mon

    May 30

    82°Lo 57°

    Partly sunny and warm

    Low ragweed pollen levels
    • Grass
      Pollen
      5 - High
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      5 - High
    more
Next Previous
Hi 79° RealFeel® 79° Precipitation 45%

Day

N

E

S

W

  • SSW 14 mph
  • Gusts: 21 mph

Mainly cloudy, breezy and warm with a shower or thunderstorm around

  • Max UV Index: 4 (Moderate)
  • Thunderstorms: 60%
  • Precipitation: 0.28 in
  • Rain: 0.28 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1.5 hrs
  • Hours of Rain: 1.5 hrs
Lo 64° RealFeel® 60° Precipitation 60%

Night

N

E

S

W

  • S 8 mph
  • Gusts: 14 mph

Considerable cloudiness and mild with a shower or thunderstorm around

  • Max UV Index: N/A
  • Thunderstorms: 60%
  • Precipitation: 0.34 in
  • Rain: 0.34 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1.5 hrs
  • Hours of Rain: 1.5 hrs

Crystal Lake Pollen Levels - May 28

  • Extreme
  • Very High
  • High
  • Moderate
  • Low
  • Tree Pollen

    High

  • Ragweed Pollen

    Low

  • Mold

    Low

  • Grass Pollen

    High

Temperature History - May 28

more Historical Weather Data >
  Today Normal Record 5/28/2015
High 79° 74° N/A 81°
Low 64° 52° N/A 52°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:21 AM with 15:00 of sunlight, then sets at 8:21 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:47 AM with 10:56 of moolight, then sets at 11:43 AM

Crystal Lake Weather Report

Chicago: Heat, humidity to unfold for Memorial Day

May 26, 2016; 11:12 PM ET

The unofficial start of summer will feel like the upcoming season on Monday in the Chicago area. more >

Sat. Pollen

Sat. Dust & Dander

Sat. Wind Maps