• Tonight

    Mar 3

    Lo 9°

    Cloudy, breezy and colder

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

    Mar 4

    16°Lo -3°

    Colder with clouds and sun

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

    Mar 5

    13°Lo 2°

    Sunny, but frigid

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

    Mar 6

    30°Lo 25°

    Partly sunny and not as cold

    Low ragweed pollen levels
    • Precip
      14%
    • Wind
      Speed
      22 mph
    • Cloud
      Cover
      41%
    more
  • Sat

    Mar 7

    36°Lo 17°

    Partial sunshine

    Ragweed Pollen Weather
    • Precip
      23%
    • Wind
      Speed
      12 mph
    • Cloud
      Cover
      46%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Wed
11am
12pm 1pm 2pm 3pm 4pm 5pm 6pm
  11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm
Forecast
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Cloudy
Temp (°F) 15° 16° 15° 14° 12° 11° 10°
RealFeel® -1° -1° -3° -6° -8° -9° -10°
Humidity 55% 54% 56% 61% 65% 67% 68% 70%
   
  11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
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0%
 
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  11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm
Wind (mph) 16 WNW 17 WNW 16 WNW 16 WNW 16 WNW 15 WNW 15 WNW 14 WNW
UV Index 3 3 3 2 2 1 0 0
Cloud Cover 70% 70% 70% 70% 65% 66% 70% 70%
Dew Point
Middle Grid line 20 F Middle Grid line 15 F Middle Grid line 10 F Middle Grid line 5 F

Temperature History - Mar 4

more Historical Weather Data >
  Today Normal Record 3/4/2014
High 16° 38° N/A 20°
Low -3° 19° N/A

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:24 AM with 11:23 of sunlight, then sets at 5:47 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:05 PM with 13:03 of moolight, then sets at 6:08 AM

Crystal Lake Weather Report

Chicago: Bitter Cold to Depart by the Weekend

March 3, 2015; 6:35 PM ET

While frigid conditions will encompass the Chicago area over the next couple of days, the weekend will offer a break from the bitter cold. more >

Making a Forecast: The Sixth Sense

Feb 16, 2015; 5:00 AM ET What steps go into making a forecast?

Wed. Pollen

Wed. Dust & Dander

Wed. Wind Maps