• Today

    Aug 1

    84°Lo 67°

    Mostly sunny and beautiful

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

    Aug 2

    84°Lo 62°

    A strong thunderstorm

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

    Aug 3

    80°Lo 56°

    Clouds and sun; less humid

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

    Aug 4

    80°Lo 59°

    Pleasant with clouds and sun

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

    Aug 5

    77°Lo 58°

    Partly sunny and delightful

    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 >
  Sun
5am
6am 7am 8am 9am 10am 11am 12pm
  5am 6am 7am 8am 9am 10am 11am 12pm
Forecast
Mostly Cloudy
T-storms
Mostly Cloudy
Cloudy
T-storms
Partly Cloudy
Partly Cloudy
Partly Cloudy
Temp (°F) 67° 67° 68° 70° 72° 74° 77° 78°
RealFeel® 64° 60° 67° 70° 68° 76° 79° 80°
Humidity 80% 84% 86% 83% 76% 72% 69% 63%
   
  5am 6am 7am 8am 9am 10am 11am 12pm
Rain
 
47%
 
51%
 
47%
 
47%
 
51%
 
47%
 
34%
 
34%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  5am 6am 7am 8am 9am 10am 11am 12pm
Wind (mph) 10 SW 10 SW 10 SW 12 SW 13 SW 13 SW 15 SW 16 SW
UV Index 0 0 0 1 2 4 5 6
Cloud Cover 76% 76% 88% 90% 83% 70% 70% 70%
Dew Point 61° 62° 64° 65° 64° 65° 66° 64°
Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F

Temperature History - Aug 2

more Historical Weather Data >
  Today Normal Record 8/2/2014
High 84° 80° N/A 80°
Low 62° 60° N/A 50°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:47 AM with 14:25 of sunlight, then sets at 8:12 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 9:34 PM with 12:05 of moolight, then sets at 9:39 AM

Crystal Lake Weather Report

Chicago: Unsettled Weather to Make Early-Week Return

August 1, 2015; 12:38 PM ET

Temperatures will stay in the 80s, with the daytime high slowly working its way into the low 80s by Monday. more >

Sun. Pollen

Sun. Dust & Dander

Sun. Wind Maps