• Today

    Apr 23

    53°Lo 38°

    An afternoon shower or two

    Moderate indoor dust & dander levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
  • Thu

    Apr 24

    62°Lo 43°

    A couple of thunderstorms

    Moderate indoor dust & dander levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Fri

    Apr 25

    67°Lo 36°

    Partly sunny and breezy

    Low indoor dust & dander levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Sat

    Apr 26

    54°Lo 33°

    Partly sunny and cooler

    Moderate indoor dust & dander levels
    • Precip
      5%
    • Wind
      Speed
      10 mph
    • Cloud
      Cover
      26%
    more
  • Sun

    Apr 27

    53°Lo 41°

    Mostly cloudy, rain possible

    Moderate indoor dust & dander levels
    • Precip
      35%
    • Wind
      Speed
      12 mph
    • Cloud
      Cover
      87%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Wed
7am
8am 9am 10am 11am 12pm 1pm 2pm
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Forecast
Mostly Sunny
Mostly Sunny
Partly Sunny
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Cloudy
Temp (°F) 35° 38° 40° 44° 48° 49° 51° 52°
RealFeel® 32° 35° 39° 45° 52° 55° 58° 56°
Humidity 81% 70% 62% 55% 48% 43% 39% 37%
   
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
24%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Wind (mph) 5 NNE 6 NNE 6 NNE 7 NE 6 NE 6 ENE 6 ENE 6 ENE
UV Index 0 1 2 3 5 5 6 5
Cloud Cover 18% 28% 36% 60% 67% 66% 65% 95%
Dew Point 30° 29° 28° 29° 29° 28° 27° 26°
Middle Grid line 55 F Middle Grid line 50 F Middle Grid line 45 F Middle Grid line 40 F Middle Grid line 35 F Middle Grid line 30 F

Temperature History - Apr 23

more Historical Weather Data >
  Today Normal Record 4/23/2013
High 53° 60° N/A 52°
Low 38° 37° N/A 36°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:00 AM with 13:44 of sunlight, then sets at 7:44 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:38 AM with 11:07 of moolight, then sets at 1:45 PM

Top Story

Crystal Lake Weather Report

Chicago: Late-Week Storms to Bring Cooler Weather

April 23, 2014; 3:31 AM ET

Some cooler weather is in store for Chicago this week as thunderstorms roll into the area around late week. more >

Is it a Cold or the Flu?

Apr 19, 2014; 5:00 AM ET Symptoms caused by the common cold can often resemble those associated with the influenza virus, so how do you differentiate between the two?

Wed. Pollen

Wed. Dust & Dander

Wed. Wind Maps