• Today

    Jul 30

    76°Lo 55°

    A thunderstorm in spots

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

    Jul 31

    81°Lo 60°

    Thunderstorm

    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
< Previous 8 hours Next 8 hours >
  Wed
12pm
1pm 2pm 3pm 4pm 5pm 6pm 7pm
  12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm
Forecast
Partly Cloudy
Partly Sunny
Partly Sunny
T-storms
Partly Sunny
Partly Sunny
Partly Cloudy
Partly Sunny
Temp (°F) 72° 74° 76° 75° 75° 75° 74° 71°
RealFeel® 77° 79° 81° 77° 77° 75° 72° 68°
Humidity 62% 59% 55% 60% 59% 59% 61% 64%
   
  12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm
Rain
 
5%
 
8%
 
47%
 
51%
 
47%
 
14%
 
14%
 
9%
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) 6 WNW 7 WNW 7 WNW 7 WNW 7 NW 6 WNW 5 WNW 4 WNW
UV Index 6 7 7 5 4 3 1 0
Cloud Cover 70% 46% 46% 70% 46% 46% 70% 46%
Dew Point 59° 59° 59° 60° 60° 60° 60° 59°
Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 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

July 30, 2014; 6:08 AM ET

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

Battling the Common Cold

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