• Today

    Sep 17

    70°Lo 46°

    Sunshine and pleasant

    Excellent for lawn mowing
    • Hours of Precip
      0
    • Precip
      3%
    • Hi
      RealFeel
      73°
  • Thu

    Sep 18

    68°Lo 49°

    Mostly sunny and pleasant

    Excellent for lawn mowing
    • Hours of Precip
      0
    • Precip
      25%
    • Hi
      RealFeel
      70°
    more
  • Fri

    Sep 19

    73°Lo 60°

    Times of clouds and sun

    Excellent for lawn mowing
    • Hours of Precip
      0
    • Precip
      5%
    • Hi
      RealFeel
      71°
    more
  • Sat

    Sep 20

    79°Lo 60°

    A couple of p.m. t-storms

    Excellent for lawn mowing
    • Hours of Precip
      3
    • Precip
      63%
    • Hi
      RealFeel
      78°
    more
  • Sun

    Sep 21

    75°Lo 54°

    Chance of a morning shower

    Very Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      30%
    • Hi
      RealFeel
      74°
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Wed
1pm
2pm 3pm 4pm 5pm 6pm 7pm 8pm
  1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm
Forecast
Partly Sunny
Partly Sunny
Partly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Clear
Temp (°F) 67° 68° 70° 69° 68° 66° 62° 59°
RealFeel® 72° 73° 73° 71° 67° 63° 61° 59°
Humidity 47% 45% 44% 46% 49% 54% 61% 67%
   
  1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm
Rain
 
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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) 4 WSW 4 WSW 4 WSW 3 WSW 3 W 2 WNW 1 N 1 N
UV Index 5 4 4 3 1 0 0 0
Cloud Cover 46% 39% 34% 29% 22% 16% 11% 0%
Dew Point 46° 46° 47° 48° 48° 49° 48° 48°
Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F

Temperature History - Sep 17

more Historical Weather Data >
  Today Normal Record 9/17/2013
High 70° 72° N/A 70°
Low 46° 48° N/A 35°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:35 AM with 12:25 of sunlight, then sets at 7:00 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:30 AM with 14:43 of moolight, then sets at 3:13 PM

Top Story

Crystal Lake Weather Report

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September 17, 2014; 1:12 AM ET

The cooler, below-average conditions responsible for the fall-like feel will hold through the end of the week over the Chicago area. more >

Why Do Leaves Change Color?

Sep 20, 2011; 5:00 AM ET Why do leaves change from green to beautiful shades of red, orange and yellow in the fall?

Current Drought Status

Current Soil Conditions

Wed. Overnight Freeze

Wed. Degree Days

Wed. Evapotranspiration