• Today

    Jul 30

    87°Lo 63°

    Sunny; breezy this afternoon

    Excellent for lawn mowing
    • Hours of Precip
      0
    • Precip
      3%
    • Hi
      RealFeel
      88°
    more
  • Fri

    Jul 31

    87°Lo 59°

    Mostly sunny

    Excellent for lawn mowing
    • Hours of Precip
      0
    • Precip
      10%
    • Hi
      RealFeel
      88°
  • Sat

    Aug 1

    82°Lo 64°

    Sunny and beautiful

    Excellent for lawn mowing
    • Hours of Precip
      1.5
    • Precip
      12%
    • Hi
      RealFeel
      84°
    more
  • Sun

    Aug 2

    84°Lo 67°

    Partly sunny with a t-storm

    Fair for lawn mowing
    • Hours of Precip
      2.5
    • Precip
      57%
    • Hi
      RealFeel
      88°
    more
  • Mon

    Aug 3

    84°Lo 61°

    A thunderstorm possible

    Very Good for lawn mowing
    • Hours of Precip
      1
    • Precip
      30%
    • Hi
      RealFeel
      88°
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Fri
9am
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  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Sunny
Sunny
Sunny
Sunny
Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 74° 78° 82° 84° 86° 86° 87° 86°
RealFeel® 74° 80° 85° 86° 88° 88° 88° 85°
Humidity 62% 55% 51% 46% 43% 42% 42% 41%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
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Snow
 
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Ice
 
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  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 10 WSW 12 WSW 13 W 14 W 15 W 15 W 16 W 16 W
UV Index 3 5 6 7 8 7 6 4
Cloud Cover 0% 0% 0% 0% 0% 26% 26% 26%
Dew Point 60° 61° 63° 61° 61° 61° 61° 60°
Middle Grid line 90 F Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F

Temperature History - Jul 31

more Historical Weather Data >
  Today Normal Record 7/31/2014
High 87° 81° N/A 80°
Low 59° 60° N/A 50°

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 8:15 PM with 10:58 of moolight, then sets at 7:13 AM

Crystal Lake Weather Report

Chicago: Unsettled Weather to Make Early-Week Return

July 30, 2015; 4:36 AM ET

Temperatures will stay in the 80s, with the daytime high slowly working its way into the low 80s by Monday. 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?

Fri. Overnight Freeze

Fri. Degree Days

Fri. Evapotranspiration