• Early AM

    Jul 31

    Lo 55°

    Partly cloudy

    Ragweed Pollen Weather
    • Grass
      Pollen
      5 - Moderate
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Today

    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°

    A t-storm in the afternoon

    Low ragweed pollen levels
    • Grass
      Pollen
      5 - Moderate
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      0 - Low
  • 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 >
  Fri
12am
1am 2am 3am 4am 5am 6am 7am
  12am 1am 2am 3am 4am 5am 6am 7am
Forecast
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Sunny
Mostly Sunny
Temp (°F) 64° 64° 62° 60° 61° 61° 62° 64°
RealFeel® 63° 62° 60° 59° 59° 60° 61° 63°
Humidity 87% 88% 92% 93% 93% 92% 91% 89%
   
  12am 1am 2am 3am 4am 5am 6am 7am
Rain
 
32%
 
28%
 
20%
 
20%
 
20%
 
20%
 
20%
 
15%
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) 3 SW 3 WSW 3 SW 3 SW 3 SW 3 SW 3 SW 3 SW
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 26% 26% 26% 26% 26% 26% 26% 26%
Dew Point 60° 60° 59° 58° 59° 59° 59° 60°
Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F

Temperature History - Aug 1

more Historical Weather Data >
  Today Normal Record 8/1/2013
High 80° 80° N/A 74°
Low 58° 60° N/A 55°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:45 AM with 14:29 of sunlight, then sets at 8:14 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 10:18 AM with 12:01 of moolight, then sets at 10:19 PM

Top Story

Crystal Lake Weather Report

Late-Week Thunderstorms in Store for Chicago

July 30, 2014; 4:08 PM 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.

Fri. Pollen

Fri. Dust & Dander

Fri. Wind Maps