• Tonight

    Dec 19

    Lo -16°

    Clear

    Lawn Mowing Weather
    • Hours of Precip
      1
    • Precip
      55%
    • Hi
      RealFeel
      -8°
    more
  • Sat

    Dec 20

    -6°Lo -14°

    Partly sunny

    Poor for lawn mowing
    • Hours of Precip
      0
    • Precip
      1%
    • Hi
      RealFeel
      -6°
  • Sun

    Dec 21

    -6°Lo -11°

    Fog, then some sun

    Poor for lawn mowing
    • Hours of Precip
      0
    • Precip
      20%
    • Hi
      RealFeel
      -5°
    more
  • Mon

    Dec 22

    -5°Lo -10°

    Some sun, then clouds

    Poor for lawn mowing
    • Hours of Precip
      0
    • Precip
      18%
    • Hi
      RealFeel
      -9°
    more
  • Tue

    Dec 23

    0°Lo -2°

    A wintry mix possible

    Poor for lawn mowing
    • Hours of Precip
      2
    • Precip
      35%
    • Hi
      RealFeel
      -5°
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sat
7am
8am 9am 10am 11am 12pm 1pm 2pm
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Forecast
Mostly Clear
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°C) -16° -14° -13° -11° -10° -9° -8° -7°
RealFeel® -16° -14° -12° -9° -8° -6° -6° -6°
Humidity 100% 99% 98% 97% 92% 85% 80% 79%
   
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Wind (km/h) 6 NW 6 NW 4 NNW 4 NNW 4 N 4 NNE 4 NNE 4 NE
UV Index 0 0 0 1 1 1 1 1
Cloud Cover 26% 26% 26% 26% 26% 26% 26% 26%
Dew Point -16° -14° -13° -11° -11° -11° -11° -10°
Middle Grid line 0 C Middle Grid line -5 C Middle Grid line -10 C Middle Grid line -15 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

Long-Range Forecast Model Update Into Mid-January

December 19, 2014; 9:08 AM ET

Update on the long-range forecast model data. more >