• Early AM

    Sep 2

    Lo 68°

    Partly cloudy

    Ragweed Pollen Weather
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Today

    Sep 2

    88°Lo 70°

    Fog in the a.m.; partly sunny

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

    Sep 3

    86°Lo 67°

    Partly sunny, a t-storm; warm

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

    Sep 4

    86°Lo 67°

    Periods of sun

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

    Sep 5

    86°Lo 68°

    Sunshine, very warm and humid

    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 >
  Thu
4am
5am 6am 7am 8am 9am 10am 11am
  4am 5am 6am 7am 8am 9am 10am 11am
Forecast
Cloudy
T-storms
Cloudy
Partly Cloudy
Mostly Cloudy
Mostly Cloudy
T-storms
Partly Sunny
Temp (°F) 71° 71° 70° 70° 72° 74° 77° 80°
RealFeel® 72° 68° 70° 71° 74° 78° 80° 89°
Humidity 86% 87% 88% 89% 85% 79% 77% 71%
   
  4am 5am 6am 7am 8am 9am 10am 11am
Rain
 
24%
 
51%
 
47%
 
43%
 
43%
 
47%
 
51%
 
39%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  4am 5am 6am 7am 8am 9am 10am 11am
Wind (mph) 6 SW 6 SW 6 WSW 6 WSW 6 SW 6 SW 7 SW 7 SW
UV Index 0 0 0 0 1 1 3 4
Cloud Cover 70% 70% 70% 70% 88% 79% 70% 44%
Dew Point 67° 67° 66° 67° 67° 67° 70° 70°
Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F

Temperature History - Sep 3

more Historical Weather Data >
  Today Normal Record 9/3/2014
High 86° 77° N/A 80°
Low 67° 54° N/A 49°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:20 AM with 13:04 of sunlight, then sets at 7:24 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 10:42 PM with 14:28 of moolight, then sets at 1:10 PM

Crystal Lake Weather Report

Chicago: More Foggy Mornings in Store as Heat Holds on

September 2, 2015; 12:21 AM ET

Chicagoans can expect to begin September with a stretch of higher temperatures, increasing humidity and more foggy mornings. more >

Thu. Pollen

Thu. Dust & Dander

Thu. Wind Maps