• Tonight

    Aug 21

    Lo 73°

    Showers and a heavier t-storm

    Ragweed Pollen Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      30 - Moderate
    • Tree
      Pollen
      0 - Low
    more
  • Fri

    Aug 22

    89°Lo 70°

    Warmer with a thunderstorm

    Moderate ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      30 - Moderate
    • Tree
      Pollen
      0 - Low
  • Sat

    Aug 23

    84°Lo 69°

    A p.m. t-storm possible

    Moderate ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      30 - Moderate
    • Tree
      Pollen
      0 - Low
    more
  • Sun

    Aug 24

    90°Lo 71°

    Clouds and sun; hot, humid

    Moderate ragweed pollen levels
    • Precip
      25%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      48%
    more
  • Mon

    Aug 25

    89°Lo 68°

    An afternoon thunderstorm

    Ragweed Pollen Weather
    • Precip
      53%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      34%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Fri
4am
5am 6am 7am 8am 9am 10am 11am
  4am 5am 6am 7am 8am 9am 10am 11am
Forecast
Partly Cloudy
Partly Cloudy
T-storms
Partly Sunny
Partly Sunny
T-storms
Partly Sunny
Partly Sunny
Temp (°F) 75° 74° 73° 73° 75° 77° 81° 84°
RealFeel® 77° 76° 72° 75° 79° 83° 91° 97°
Humidity 89% 90% 90% 90% 87% 84% 80% 76%
   
  4am 5am 6am 7am 8am 9am 10am 11am
Rain
 
47%
 
47%
 
51%
 
47%
 
47%
 
51%
 
47%
 
34%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  4am 5am 6am 7am 8am 9am 10am 11am
Wind (mph) 4 SSW 4 SSW 4 SSW 4 SSW 5 SW 5 SW 6 SW 6 SW
UV Index 0 0 0 0 1 2 3 5
Cloud Cover 45% 45% 45% 45% 48% 70% 46% 46%
Dew Point 71° 71° 70° 70° 71° 72° 74° 75°
Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F

Temperature History - Aug 22

more Historical Weather Data >
  Today Normal Record 8/22/2013
High 89° 79° N/A 73°
Low 70° 58° N/A 56°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:08 AM with 13:36 of sunlight, then sets at 7:44 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:30 AM with 14:23 of moolight, then sets at 5:53 PM

Top Story

Crystal Lake Weather Report

Chicago: Threat of Thunderstorms Lingers After Heavy Rains Flood Wrigley Field

August 21, 2014; 12:59 PM ET

While there may be a mix of sunshine and clouds over the area, Chicago is facing more rounds of thunderstorms over the next several days. more >

Fri. Pollen

Fri. Dust & Dander

Fri. Wind Maps