• Today

    May 27

    80°Lo 67°

    A thunderstorm in spots

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

    May 28

    79°Lo 64°

    A thunderstorm in spots

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

    May 29

    80°Lo 60°

    A morning shower in places

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

    May 30

    81°Lo 59°

    A p.m. t-storm in spots

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

    May 31

    80°Lo 63°

    A p.m. t-storm in spots

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Rain 66° RealFeel® 62°

N

E

S

W

  • Humidity: 93%
  • Pressure: 29.81 in ↑
  • UV Index: 1
  • Cloud Cover: 90%
  • Ceiling: 6400 ft
  • Dew Point: 64° F
  • Visibility: 3 mi
9 mph

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:20 AM with 14:59 of sunlight, then sets at 8:19 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:07 AM with 10:30 of moolight, then sets at 10:37 AM

Temperature Summary - 5:34 PM

  Temp (°F)
Now 66°
Yesterday 51°
RealFeel® 62°
RealFeel® Shade 61°
Wind Chill 66°
Dew Point 64°
  Hi / Lo
Previous 6 Hours 80°
  66°
Previous 12 Hours 80°
  66°
Previous 24 Hours 82°
  64°

Temperature History - May 27

more Historical Weather Data >
  Today Normal Record 5/27/2015
High 80° 70° N/A 72°
Low 67° 50° N/A 56°

Precipitation Summary - 5:34 PM

  Amount (in)
Previous 1 Hour 0.08
Previous 3 Hours 0.08
Previous 6 Hours 0.08
Previous 9 Hours 0.08
Previous 12 Hours 0.08
Previous 18 Hours 0.08
Previous 24 Hours 0.08

Grayslake Weather Report

Chicago: Heat, humidity to unfold for Memorial Day

May 27, 2016; 2:40 PM ET

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

Fri. Pollen

Fri. Dust & Dander

Fri. Wind Maps