• Early AM

    Dec 18

    Lo 18°

    Mostly cloudy

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

    Dec 18

    31°Lo 19°

    Mainly cloudy

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

    Dec 19

    33°Lo 23°

    Times of clouds and sun

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

    Dec 20

    36°Lo 23°

    Clouds breaking for some sun

    Low ragweed pollen levels
    • Precip
      16%
    • Wind
      Speed
      2 mph
    • Cloud
      Cover
      70%
    more
  • Sun

    Dec 21

    37°Lo 29°

    Partly sunny

    Low ragweed pollen levels
    • Precip
      11%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      45%
    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
Partly Sunny
Partly Sunny
Partly Sunny
Partly Sunny
Partly Sunny
Partly Sunny
Partly Sunny
Temp (°F) 26° 28° 30° 31° 32° 33° 33° 32°
RealFeel® 27° 31° 33° 35° 36° 36° 34° 35°
Humidity 70% 65% 61% 57% 55% 55% 56% 59%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
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) 2 NW 2 WNW 2 WNW 2 NNW 2 SSW 2 SSW 2 W 0
UV Index 0 1 1 1 1 1 0 0
Cloud Cover 46% 46% 46% 46% 46% 46% 46% 46%
Dew Point 17° 18° 18° 18° 18° 18° 18° 19°
Middle Grid line 35 F Middle Grid line 30 F Middle Grid line 25 F

Temperature History - Dec 19

more Historical Weather Data >
  Today Normal Record 12/19/2013
High 33° 30° N/A 32°
Low 23° 14° N/A 20°

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 4:29 AM with 10:18 of moolight, then sets at 2:47 PM

Crystal Lake Weather Report

Chicago: White Christmas in the Offing

December 17, 2014; 8:33 PM ET

While the next couple of days will be tranquil for the Chicago area, Christmas Eve could deliver enough snow to blanket the city. more >

Fri. Pollen

Fri. Dust & Dander

Fri. Wind Maps