• Early AM

    Oct 21

    Lo 40°

    Partly to mostly cloudy

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

    Oct 21

    54°Lo 35°

    Times of clouds and sun

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

    Oct 22

    56°Lo 36°

    Plenty of sunshine

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

    Oct 23

    57°Lo 46°

    An afternoon shower

    Low ragweed pollen levels
    • Precip
      41%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      76%
    more
  • Fri

    Oct 24

    64°Lo 46°

    Pleasant and warmer

    Low ragweed pollen levels
    • Precip
      6%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      38%
    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 Sunny
Partly Sunny
Partly Sunny
Partly Sunny
Partly Sunny
Partly Sunny
Temp (°F) 48° 50° 52° 53° 54° 53° 52° 51°
RealFeel® 42° 46° 49° 51° 51° 50° 47° 45°
Humidity 73% 68% 63% 60% 58% 58% 60% 62%
   
  10am 11am 12pm 1pm 2pm 3pm 4pm 5pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
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Ice
 
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  10am 11am 12pm 1pm 2pm 3pm 4pm 5pm
Wind (mph) 10 N 12 N 12 NNE 12 NNE 12 NNE 10 NNE 10 NNE 9 NNE
UV Index 1 2 3 3 3 2 1 0
Cloud Cover 46% 46% 46% 46% 46% 46% 46% 46%
Dew Point 39° 40° 40° 40° 40° 39° 39° 38°
Middle Grid line 55 F Middle Grid line 50 F Middle Grid line 45 F

Temperature History - Oct 21

more Historical Weather Data >
  Today Normal Record 10/21/2013
High 54° 58° N/A 48°
Low 35° 36° N/A 26°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:13 AM with 10:49 of sunlight, then sets at 6:02 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:55 AM with 12:02 of moolight, then sets at 4:57 PM

Crystal Lake Weather Report

Cool Weather Ahead for Chicago

October 21, 2014; 2:18 AM ET

Seasonable temperatures will be the rule this week across Chicagoland. more >

Tue. Pollen

Tue. Dust & Dander

Tue. Wind Maps