• Today

    Aug 31

    87°Lo 68°

    Fog in the a.m.; mostly sunny

    Very Good for running
    • Precip
      3%
    • Hours of Precip
      0
    • Wind
      Gust
      7 mph
  • Tue

    Sep 1

    89°Lo 69°

    Mostly sunny, warm and humid

    Very Good for running
    • Precip
      8%
    • Hours of Precip
      0
    • Wind
      Gust
      10 mph
    more
  • Wed

    Sep 2

    91°Lo 68°

    Partly sunny and hot

    Very Good for running
    • Precip
      9%
    • Hours of Precip
      0
    • Wind
      Gust
      8 mph
    more
  • Thu

    Sep 3

    89°Lo 67°

    Mostly sunny and very warm

    Very Good for running
    • Precip
      7%
    • Hours of Precip
      0
    • Wind
      Gust
      7 mph
    more
  • Fri

    Sep 4

    89°Lo 66°

    Mostly sunny and very warm

    Very Good for running
    • Precip
      8%
    • Hours of Precip
      0
    • Wind
      Gust
      7 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Mon
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  8pm 9pm 10pm 11pm 12am 1am 2am 3am
Forecast
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Temp (°F) 78° 76° 74° 72° 72° 71° 70° 70°
RealFeel® 79° 78° 76° 73° 73° 73° 71° 71°
Humidity 72% 79% 83% 86% 89% 90% 90% 91%
   
  8pm 9pm 10pm 11pm 12am 1am 2am 3am
Rain
 
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0%
 
0%
 
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0%
 
0%
 
0%
Snow
 
0%
 
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Ice
 
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  8pm 9pm 10pm 11pm 12am 1am 2am 3am
Wind (mph) 5 SSW 5 SSW 6 SSW 6 SSW 6 SSW 6 SSW 5 SSW 5 SSW
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 3% 1% 0% 0% 0% 0% 3% 7%
Dew Point 68° 69° 69° 68° 68° 68° 67° 67°
Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F

Temperature History - Aug 31

more Historical Weather Data >
  Today Normal Record 8/31/2014
High 87° 81° 98° (1953) 86°
Low 68° 60° 33° (1915) 67°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:20 AM with 13:10 of sunlight, then sets at 7:30 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:45 PM with 13:01 of moolight, then sets at 9:46 AM

Ottawa 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 >

Avoid the Winter Workout Blues

Dec 26, 2012; 5:00 AM ET When it's snowing or cold, most of us want nothing more than to keep warm on the couch. But Violeta Yas has some tips to help you sneak in mini workouts at the office, regardless of the weather.