• Today

    Aug 31

    85°Lo 67°

    Fog in the a.m.; mostly sunny

    Very Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      3%
    • Hi
      RealFeel
      92°
  • Tue

    Sep 1

    88°Lo 67°

    Fog in the a.m.; mostly sunny

    Very Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      8%
    • Hi
      RealFeel
      95°
    more
  • Wed

    Sep 2

    90°Lo 66°

    Partly sunny and very warm

    Very Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      8%
    • Hi
      RealFeel
      98°
    more
  • Thu

    Sep 3

    88°Lo 65°

    Very warm with sunshine

    Very Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      7%
    • Hi
      RealFeel
      94°
    more
  • Fri

    Sep 4

    88°Lo 65°

    Mostly sunny and very warm

    Very Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      7%
    • Hi
      RealFeel
      93°
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Mon
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  4am 5am 6am 7am 8am 9am 10am 11am
Forecast
Fog
Fog
Fog
Fog
Fog
Fog
Fog
Sunny
Temp (°F) 63° 62° 63° 58° 64° 67° 72° 76°
RealFeel® 64° 63° 65° 59° 67° 72° 80° 86°
Humidity 90% 88% 93% 100% 94% 83% 76% 70%
   
  4am 5am 6am 7am 8am 9am 10am 11am
Rain
 
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Snow
 
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Ice
 
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  4am 5am 6am 7am 8am 9am 10am 11am
Wind (mph) 0 0 1 S 1 S 0 1 W 2 S 4 SSW
UV Index 0 0 0 0 1 2 3 5
Cloud Cover 71% 71% 31% 11% 24% 2% 0% 0%
Dew Point 60° 59° 61° 58° 62° 62° 64° 66°
Middle Grid line 80 F 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 - Aug 31

more Historical Weather Data >
  Today Normal Record 8/31/2014
High 85° 80° N/A 84°
Low 67° 61° N/A 64°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:18 AM with 13:11 of sunlight, then sets at 7:29 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:42 PM with 13:02 of moolight, then sets at 9:44 AM

St. Charles Weather Report

Chicago: Heat, Humidity to Build Through Week

August 31, 2015; 3:00 AM ET

A turn to warmer conditions is in store for the Chicago area heading into the new week. 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

Mon. Overnight Freeze

Mon. Degree Days

Mon. Evapotranspiration