• Today

    Dec 19

    34°Lo 23°

    Mostly cloudy

    Beneficial weather for asthma
    • Hi
      RealFeel
      38°
    • UV
      1 - Low
    • Air Qual.
      Good
    more
  • Sat

    Dec 20

    37°Lo 29°

    Periods of clouds and sun

    Beneficial weather for asthma
    • Hi
      RealFeel
      37°
    • UV
      1 - Low
    • Air Qual.
      Good
    more
  • Sun

    Dec 21

    41°Lo 30°

    Mostly cloudy

    Beneficial weather for asthma
    • Hi
      RealFeel
      33°
    • UV
      1 - Low
    • Air Qual.
      Good
  • Mon

    Dec 22

    42°Lo 36°

    Mostly cloudy, afternoon rain

    Neutral weather for asthma
    • Hi
      RealFeel
      32°
    • UV
      1 - Low
    • Cloud
      Cover
      86%
    more
  • Tue

    Dec 23

    42°Lo 30°

    Considerable cloudiness

    Beneficial weather for asthma
    • Hi
      RealFeel
      35°
    • UV
      1 - Low
    • Cloud
      Cover
      85%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Cloudy
Cloudy
Mostly Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Mostly Cloudy
Temp (°F) 34° 36° 37° 39° 41° 41° 41° 40°
RealFeel® 25° 27° 28° 30° 32° 33° 32° 31°
Humidity 76% 73% 70% 68% 66% 66% 67% 69%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
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1%
 
1%
 
1%
 
1%
Snow
 
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Ice
 
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  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 10 SSE 12 SSE 12 SSE 13 S 13 SSE 13 SSE 12 SSE 12 SSE
UV Index 0 1 1 1 1 1 0 0
Cloud Cover 90% 90% 89% 90% 90% 90% 90% 89%
Dew Point 27° 28° 28° 29° 30° 31° 31° 31°
Middle Grid line 45 F Middle Grid line 40 F Middle Grid line 35 F Middle Grid line 30 F

Temperature History - Dec 21

more Historical Weather Data >
  Today Normal Record 12/21/2013
High 41° 34° 62° (1967) 33°
Low 30° 18° -18° (1963) 27°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:18 AM with 9:11 of sunlight, then sets at 4:29 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:33 AM with 10:03 of moolight, then sets at 4:36 PM

Ottawa Weather Report

Chicago: Chance for a White Christmas as Pattern Turns Unsettled

December 19, 2014; 6:32 AM ET

There's a chance for a white Christmas around Chicagoland as next week turns unsettled. more >

The Dangers of Bus Travel

Dec 10, 2012; 5:00 AM ET While bus transportation is one of the most affordable, it is important to know which motor coach companies rank highest in safety.

Sun. Asthma Risk

Sun. UV Index