• Tonight

    Jul 30

    Lo 55°

    Partly cloudy

    Ragweed Pollen Weather
    • Grass
      Pollen
      5 - Moderate
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      0 - Low
  • Thu

    Jul 31

    81°Lo 60°

    A p.m. t-storm in spots

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

    Aug 1

    80°Lo 58°

    Clouds and sun with a t-storm

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

    Aug 2

    80°Lo 55°

    Partly sunny with a t-storm

    Low ragweed pollen levels
    • Precip
      59%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      54%
    more
  • Sun

    Aug 3

    82°Lo 58°

    Partly sunny and pleasant

    Ragweed Pollen Weather
    • Precip
      9%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      26%
    more
Next Previous
Next 8 hours >
  Wed
12am
1am 2am 3am 4am 5am 6am 7am
  12am 1am 2am 3am 4am 5am 6am 7am
Forecast
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Cloudy
Cloudy
Mostly Cloudy
Partly Cloudy
Temp (°F) 62° 61° 59° 58° 57° 56° 58° 60°
RealFeel® 59° 59° 57° 56° 55° 54° 56° 59°
Humidity 82% 83% 84% 87% 89% 93% 93% 91%
   
  12am 1am 2am 3am 4am 5am 6am 7am
Rain
 
17%
 
18%
 
20%
 
20%
 
20%
 
20%
 
20%
 
16%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  12am 1am 2am 3am 4am 5am 6am 7am
Wind (mph) 5 WSW 4 W 4 SW 4 SW 4 WSW 4 NW 4 NW 4 NW
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 43% 38% 35% 38% 51% 67% 88% 59%
Dew Point 56° 55° 54° 54° 54° 54° 56° 57°
Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F

Temperature History - Jul 30

more Historical Weather Data >
  Today Normal Record 7/30/2013
High 76° 81° N/A 73°
Low 55° 60° N/A 48°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:44 AM with 14:31 of sunlight, then sets at 8:15 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 9:21 AM with 12:30 of moolight, then sets at 9:51 PM

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Crystal Lake Weather Report

Late-Week Thunderstorms in Store for Chicago

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Thunderstorms will move into the Chicago area later this week, and the threat for storms will remain into the weekend. more >

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Jun 23, 2014; 5:00 AM ET Marja Martinez talks about identifying and fighting the common cold.

Wed. Pollen

Wed. Dust & Dander

Wed. Wind Maps