• Tonight

    Dec 20

    Lo -14°

    Areas of freezing fog late

    Sinus Headache Weather
    • Hi
      RealFeel
      -4°
    • UV
      1 - Low
    • Cloud
      Cover
      17%
  • Sun

    Dec 21

    -6°Lo -14°

    Fog, then some sun

    At Risk weather for sinus headaches
    • Hi
      RealFeel
      -5°
    • UV
      1 - Low
    • Cloud
      Cover
      61%
    more
  • Mon

    Dec 22

    -4°Lo -7°

    Some sun, then clouds

    At Risk weather for sinus headaches
    • Hi
      RealFeel
      -7°
    • UV
      1 - Low
    • Cloud
      Cover
      67%
    more
  • Tue

    Dec 23

    0°Lo -2°

    A bit of ice in the afternoon

    At High Risk weather for sinus headaches
    • Hi
      RealFeel
      -6°
    • UV
      0 - Low
    • Cloud
      Cover
      95%
    more
  • Wed

    Dec 24

    5°Lo 2°

    Rain becoming steadier

    At Extreme Risk weather for sinus headaches
    • Hi
      RealFeel
      -5°
    • UV
      0 - Low
    • Cloud
      Cover
      95%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sat
7am
8am 9am 10am 11am 12pm
  7am 8am 9am 10am 11am 12pm
Forecast
Clear
Sunny
Sunny
Sunny
Sunny
Mostly Sunny
Temp (°C) -14° -14° -14° -12° -10° -8°
RealFeel® -16° -15° -14° -8° -8° -5°
Humidity 98% 100% 84% 88% 84% 77%
   
  7am 8am 9am 10am 11am 12pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  7am 8am 9am 10am 11am 12pm
Wind (km/h) 9 WNW 7 NW 6 WSW 0 6 W 4 N
UV Index 0 0 0 1 1 1
Cloud Cover 0% 0% 0% 0% 0% 25%
Dew Point -14° -14° -16° -14° -12° -11°
Middle Grid line 0 C Middle Grid line -5 C Middle Grid line -10 C

Temperature History - Dec 20

more Historical Weather Data >
  Today Normal Record 12/20/2013
High -6° -3° 13° (1957) -2°
Low -14° -12° -34° (1942) -7°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:39 AM with 8:43 of sunlight, then sets at 4:22 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:48 AM with 9:47 of moolight, then sets at 3:35 PM

Ottawa Weather Report

Weekend Update on White Christmas Potential in Canada

December 20, 2014; 3:49 PM ET

Update on White Christmas probabilities for Canada more >