• Early AM

    Dec 20

    Lo 22°

    Mostly cloudy

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

    Dec 20

    35°Lo 27°

    Mostly cloudy

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
  • Sun

    Dec 21

    40°Lo 30°

    Mostly cloudy with a flurry

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

    Dec 22

    42°Lo 37°

    Cloudy with afternoon rain

    Low ragweed pollen levels
    • Precip
      75%
    • Wind
      Speed
      15 mph
    • Cloud
      Cover
      90%
    more
  • Tue

    Dec 23

    43°Lo 31°

    Cloudy with spotty showers

    Ragweed Pollen Weather
    • Precip
      60%
    • Wind
      Speed
      10 mph
    • Cloud
      Cover
      91%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sat
10am
11am 12pm 1pm 2pm 3pm 4pm 5pm
  10am 11am 12pm 1pm 2pm 3pm 4pm 5pm
Forecast
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Mostly Cloudy
Mostly Cloudy
Temp (°F) 31° 32° 33° 34° 35° 34° 34° 33°
RealFeel® 32° 33° 34° 34° 34° 33° 32° 32°
Humidity 67% 63% 60% 59% 59% 61% 64% 66%
   
  10am 11am 12pm 1pm 2pm 3pm 4pm 5pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
1%
 
1%
 
1%
 
1%
 
1%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  10am 11am 12pm 1pm 2pm 3pm 4pm 5pm
Wind (mph) 2 SSW 4 SSW 4 SSW 4 SSW 5 SSW 5 SSW 5 SSW 4 S
UV Index 0 1 1 1 0 0 0 0
Cloud Cover 94% 94% 94% 94% 92% 90% 89% 89%
Dew Point 21° 21° 21° 21° 22° 22° 22° 23°
Middle Grid line 40 F Middle Grid line 35 F Middle Grid line 30 F

Temperature History - Dec 20

more Historical Weather Data >
  Today Normal Record 12/20/2013
High 35° 30° N/A 31°
Low 27° 14° N/A 24°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:18 AM with 9:05 of sunlight, then sets at 4:23 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:32 AM with 10:04 of moolight, then sets at 3:36 PM

Crystal Lake Weather Report

Chicago: Chance for a White Christmas as Pattern Turns Unsettled

December 19, 2014; 2:16 PM ET

There's a chance for a white Christmas around Chicagoland as next week turns unsettled. more >

Sat. Pollen

Sat. Dust & Dander

Sat. Wind Maps