• Today

    Aug 4

    81°Lo 57°

    Partly sunny and pleasant

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

    Aug 5

    83°Lo 62°

    Partial sunshine

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

    Aug 6

    82°Lo 62°

    Intervals of clouds and sun

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

    Aug 7

    82°Lo 65°

    Periods of sun with a t-storm

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

    Aug 8

    86°Lo 66°

    Partly sunny

    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 >
  Tue
10am
11am 12pm 1pm 2pm 3pm 4pm 5pm
  10am 11am 12pm 1pm 2pm 3pm 4pm 5pm
Forecast
Partly Sunny
Partly Sunny
Partly Cloudy
Partly Cloudy
Partly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 73° 76° 77° 79° 80° 81° 81° 80°
RealFeel® 77° 80° 81° 82° 84° 84° 82° 80°
Humidity 51% 47% 42% 39% 39% 37% 37% 38%
   
  10am 11am 12pm 1pm 2pm 3pm 4pm 5pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
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0%
Ice
 
0%
 
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  10am 11am 12pm 1pm 2pm 3pm 4pm 5pm
Wind (mph) 6 WNW 8 WNW 10 WNW 12 WNW 10 WNW 10 WNW 10 WNW 9 WNW
UV Index 4 5 6 6 6 6 4 3
Cloud Cover 45% 49% 58% 60% 46% 26% 26% 26%
Dew Point 54° 55° 53° 52° 53° 53° 52° 53°
Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F

Temperature History - Aug 4

more Historical Weather Data >
  Today Normal Record 8/4/2014
High 81° 80° N/A 81°
Low 57° 60° N/A 57°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:49 AM with 14:20 of sunlight, then sets at 8:09 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 10:45 PM with 13:16 of moolight, then sets at 12:01 PM

Crystal Lake Weather Report

Chicago: Cooler Conditions to Last Through Week

August 4, 2015; 3:07 PM ET

The Chicagoland area will experience cooler weather throughout the week. more >

Tue. Pollen

Tue. Dust & Dander

Tue. Wind Maps