• Tue

    Sep 1

    86°Lo 64°

    Sunny, very warm and humid

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
  • Wed

    Sep 2

    87°Lo 61°

    Very warm with sunshine

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

    Sep 3

    84°Lo 62°

    Mostly sunny and very warm

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

    Sep 4

    84°Lo 62°

    Mostly cloudy and very warm

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

    Sep 5

    81°Lo 59°

    Cloudy, warm and humid

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Hi 86° RealFeel® 91° Precipitation 12%

Day

N

E

S

W

  • SSE 7 mph
  • Gusts: 10 mph

Very warm and humid with sunshine

  • Max UV Index: 6 (High)
  • Thunderstorms: 24%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 64° RealFeel® 65° Precipitation 10%

Night

N

E

S

W

  • SSE 5 mph
  • Gusts: 7 mph

Clear

  • Max UV Index: N/A
  • Thunderstorms: 6%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Sep 1

more Historical Weather Data >
  Today Normal Record 9/1/2014
High 86° 78° N/A 80°
Low 64° 55° N/A 61°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:18 AM with 13:10 of sunlight, then sets at 7:28 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 9:21 PM with 13:35 of moolight, then sets at 10:56 AM

Crystal Lake Weather Report

Chicago: Stray Shower May Interrupt Otherwise Ideal Weekend Conditions

August 27, 2015; 4:38 PM ET

Chicago is in store for near-ideal weekend conditions after a brief shower hits the area on Saturday. more >