• Clear 72°
    Hair Frizz Current Weather
    • Relative Humidity
      78%
    • Wind
      Speed
      8 mph
    • Dew
      Point
      65°
  • Early AM

    Aug 2

    Lo 66°

    A shower or heavy thunderstorm

    Hair Frizz Weather
    • Wind
      Gust
      14 mph
    • Precip
      55%
    • Hours of Precip
      1
    Day Details >
  • Today

    Aug 2

    Hi 86°

    A strong thunderstorm

    Advisory for hair frizz
    • Wind
      Gust
      18 mph
    • Precip
      57%
    • Hours of Precip
      1
    Day Details >
  • Tomorrow

    Aug 3

    Hi 79°

    Partly sunny and breezy

    Watch for hair frizz
    • Wind
      Gust
      12 mph
    • Precip
      25%
    • Hours of Precip
      0
    Day Details >
Next

Thunderstorms, some strong, tomorrow morning through tomorrow evening

8/2 8/2 Now: 12:06am
AM 12-4
  • 12am Mostly clear 70° 7%
  • 1am Mostly clear 70° 10%
  • 2am Mostly cloudy 68° 15%
  • 3am Mostly cloudy 68° 15%
  • 4am Mostly cloudy 68° 19%
AM 11-4
  • 11am Intermittent clouds 77° 47%
  • 12pm Mostly cloudy w/ t-storms 76° 51%
  • 1pm Intermittent clouds 80° 47%
  • 2pm Intermittent clouds 82° 34%
  • 3pm Intermittent clouds 84° 34%
  • 4pm Intermittent clouds 86° 37%
PM 5-10
  • 5pm Intermittent clouds 85° 47%
  • 6pm Mostly cloudy w/ t-storms 79° 51%
  • 7pm Intermittent clouds 80° 47%
  • 8pm Partly sunny 79° 47%
  • 9pm Mostly cloudy w/ t-storms 74° 51%
  • 10pm Partly cloudy 74° 47%
Hourly Forecast >
Aug 01, 2015; 4:22 PM ET
Five-day Weather Forecast for Chicago, IL
Chicago, IL Weather Forecast

St. Charles Weather Report

Chicago: Cooler Weather to Move in Midweek

August 1, 2015; 12:26 PM ET

After a warm start to the week, a trend toward cooler temperatures can be expected. more >

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The History Behind the UV Index

Nov 12, 2012; 5:00 AM ET The UV index has been around since the early 1990s. It was created to help you plan outdoor activities in hopes to limit overexposure to the sun. Jeannette Calle has more.

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