• Today

    May 27

    76°Lo 56°

    Clouds breaking and warm

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

    May 28

    84°Lo 62°

    Warmer with plenty of sun

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

    May 29

    83°Lo 59°

    A shower and t-storm around

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

    May 30

    62°Lo 40°

    Cooler with a touch of rain

    Low ragweed pollen levels
    • Precip
      55%
    • Wind
      Speed
      17 mph
    • Cloud
      Cover
      79%
    more
  • Sun

    May 31

    65°Lo 44°

    Partly sunny

    Ragweed Pollen Weather
    • Precip
      25%
    • Wind
      Speed
      10 mph
    • Cloud
      Cover
      45%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Wed
12pm
1pm 2pm 3pm 4pm 5pm 6pm 7pm
  12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm
Forecast
Mostly Cloudy
Mostly Cloudy
Partly Cloudy
Partly Sunny
Partly Sunny
Partly Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 70° 72° 73° 74° 75° 76° 75° 73°
RealFeel® 71° 73° 76° 77° 77° 76° 74° 71°
Humidity 63% 60% 57% 56% 53% 53% 57% 58%
   
  12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm
Rain
 
34%
 
29%
 
20%
 
20%
 
20%
 
20%
 
20%
 
16%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm
Wind (mph) 13 W 12 W 12 W 10 W 10 W 9 W 8 W 7 W
UV Index 4 4 6 5 4 3 2 1
Cloud Cover 89% 86% 51% 48% 45% 45% 26% 26%
Dew Point 57° 57° 57° 58° 57° 58° 58° 57°
Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F

Temperature History - May 27

more Historical Weather Data >
  Today Normal Record 5/27/2014
High 76° 71° N/A 83°
Low 56° 48° N/A 57°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:22 AM with 14:57 of sunlight, then sets at 8:19 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:30 PM with 12:10 of moolight, then sets at 2:40 AM

Crystal Lake Weather Report

Chicago: Temperatures to Take Dramatic Swing at Late Week

May 27, 2015; 4:24 AM ET

Following the chance for early-week storms, temperatures in the Chicago area will be on a roller coaster leading into the weekend. more >

Wed. Pollen

Wed. Dust & Dander

Wed. Wind Maps