• Tonight

    Apr 26

    Lo 32°

    Mainly clear and cold

    Ragweed Pollen Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Mon

    Apr 27

    54°Lo 34°

    Plenty of sun

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

    Apr 28

    58°Lo 38°

    Partly sunny

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

    Apr 29

    63°Lo 38°

    More clouds than sun

    Low ragweed pollen levels
    • Precip
      4%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      70%
    more
  • Thu

    Apr 30

    60°Lo 39°

    Mostly sunny

    Ragweed Pollen Weather
    • Precip
      0%
    • Wind
      Speed
      13 mph
    • Cloud
      Cover
      15%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Mon
5am
6am 7am 8am 9am 10am 11am 12pm
  5am 6am 7am 8am 9am 10am 11am 12pm
Forecast
Mostly Clear
Mostly Sunny
Mostly Sunny
Sunny
Sunny
Sunny
Sunny
Sunny
Temp (°F) 37° 41° 46° 48° 51° 54° 54° 53°
RealFeel® 33° 38° 44° 47° 51° 55° 55° 54°
Humidity 74% 60% 52% 49% 45% 44% 49% 49%
   
  5am 6am 7am 8am 9am 10am 11am 12pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
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  5am 6am 7am 8am 9am 10am 11am 12pm
Wind (mph) 7 NNW 6 NNW 6 NNW 7 NNW 9 N 10 N 12 N 12 N
UV Index 0 0 0 1 2 4 6 7
Cloud Cover 25% 25% 25% 0% 0% 0% 1% 6%
Dew Point 30° 29° 29° 30° 31° 33° 35° 34°
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

Temperature History - Apr 27

more Historical Weather Data >
  Today Normal Record 4/27/2014
High 54° 61° N/A 52°
Low 34° 39° N/A 38°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:55 AM with 13:53 of sunlight, then sets at 7:48 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:50 PM with 13:23 of moolight, then sets at 3:13 AM

Crystal Lake Weather Report

Sunshine to Prevail This Week in Chicago

April 26, 2015; 6:25 PM ET

Sunny skies and cooler conditions will be the rule this week in Chicago. more >

Mon. Pollen

Mon. Dust & Dander

Mon. Wind Maps