• Today

    Sep 23

    73°Lo 49°

    Mostly sunny and pleasant

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

    Sep 24

    74°Lo 51°

    Mostly sunny and pleasant

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

    Sep 25

    75°Lo 51°

    Mostly sunny and nice

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

    Sep 26

    77°Lo 51°

    Sunny and pleasantly warm

    Low ragweed pollen levels
    • Precip
      5%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      0%
    more
  • Sat

    Sep 27

    78°Lo 54°

    Mostly sunny, nice and warm

    Ragweed Pollen Weather
    • Precip
      8%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      16%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Tue
1pm
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  1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm
Forecast
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Clear
Mostly Clear
Temp (°F) 70° 71° 73° 72° 70° 68° 64° 61°
RealFeel® 75° 75° 75° 72° 69° 65° 63° 59°
Humidity 48% 45% 43% 44% 47% 51% 59% 67%
   
  1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
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Ice
 
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  1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm
Wind (mph) 5 S 5 S 5 SSE 5 SSE 4 SSE 3 SE 3 SE 3 SE
UV Index 5 4 4 2 1 0 0 0
Cloud Cover 11% 11% 11% 11% 11% 11% 11% 11%
Dew Point 50° 49° 49° 49° 49° 50° 50° 50°
Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F

Temperature History - Sep 23

more Historical Weather Data >
  Today Normal Record 9/23/2013
High 73° 70° N/A 65°
Low 49° 46° N/A 36°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:41 AM with 12:08 of sunlight, then sets at 6:49 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:06 AM with 12:21 of moolight, then sets at 6:27 PM

Top Story

Crystal Lake Weather Report

Drier Air Heads into Chicago Following Storms

September 23, 2014; 4:10 AM ET

Drier air will filter into the Chicago area for the rest of the week, resulting in dry skies and clear conditions to kick off the first week of fall. more >

Tue. Pollen

Tue. Dust & Dander

Tue. Wind Maps