• Today

    Sep 3

    88°Lo 67°

    An afternoon thunderstorm

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

    Sep 4

    85°Lo 67°

    Clouds and sun with a t-storm

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

    Sep 5

    87°Lo 68°

    Partly sunny, warm and humid

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

    Sep 6

    89°Lo 72°

    Partly sunny and very warm

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

    Sep 7

    84°Lo 63°

    Mostly cloudy with a t-storm

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Fri
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Partly Sunny
T-storms
Partly Sunny
Partly Sunny
Partly Sunny
Partly Sunny
T-storms
Partly Cloudy
Temp (°F) 72° 76° 79° 81° 83° 85° 81° 83°
RealFeel® 77° 81° 91° 93° 94° 96° 90° 91°
Humidity 83% 80% 75% 66% 61% 55% 74% 67%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
47%
 
51%
 
19%
 
15%
 
19%
 
47%
 
51%
 
47%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 4 ENE 4 ENE 4 ENE 4 ENE 4 ENE 4 ENE 5 ENE 5 ENE
UV Index 2 3 4 5 5 5 4 3
Cloud Cover 46% 46% 46% 46% 46% 46% 70% 70%
Dew Point 67° 69° 70° 69° 68° 68° 73° 71°
Middle Grid line 90 F Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F

Temperature History - Sep 4

more Historical Weather Data >
  Today Normal Record 9/4/2014
High 85° 77° N/A 80°
Low 67° 54° N/A 64°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:21 AM with 13:01 of sunlight, then sets at 7:22 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:28 PM with 14:42 of moolight, then sets at 2:10 PM

Crystal Lake Weather Report

Chicago: Sun, Humidity to Grip Region Before Stormy Labor Day

September 3, 2015; 5:10 AM ET

As the Labor Day weekend shapes up, Chicago residents will see mostly sunny and humid conditions until the holiday itself on Monday. more >

Fri. Pollen

Fri. Dust & Dander

Fri. Wind Maps