• Tonight

    Sep 17

    Lo 4°

    Mostly cloudy, a little rain

    Hair Frizz Weather
    • Wind
      Gust
      44 k/h
    • Precip
      55%
    • Hours of Precip
      3
    more
  • Thu

    Sep 18

    12°Lo -1°

    Clearing and cool

    Watch for hair frizz
    • Wind
      Gust
      21 k/h
    • Precip
      0%
    • Hours of Precip
      0
  • Fri

    Sep 19

    14°Lo 6°

    Mostly sunny and pleasant

    Unlikely for hair frizz
    • Wind
      Gust
      16 k/h
    • Precip
      0%
    • Hours of Precip
      0
    more
  • Sat

    Sep 20

    20°Lo 14°

    Showers around in the p.m.

    Advisory for hair frizz
    • Wind
      Gust
      35 k/h
    • Precip
      60%
    • Hours of Precip
      3
    more
  • Sun

    Sep 21

    21°Lo 8°

    Mostly cloudy, showers around

    Advisory for hair frizz
    • Wind
      Gust
      40 k/h
    • Precip
      60%
    • Hours of Precip
      2
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Thu
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°C) 10° 11° 11° 12° 11°
RealFeel® 10° 11° 12° 10°
Humidity 71% 65% 60% 52% 48% 46% 42% 44%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
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  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (km/h) 14 NNW 14 NNW 14 N 14 NNW 14 NNW 14 NNW 13 NNW 13 NNW
UV Index 1 2 3 3 3 4 3 2
Cloud Cover 95% 95% 95% 95% 95% 25% 25% 25%
Dew Point
Middle Grid line 15 C Middle Grid line 10 C Middle Grid line 5 C

Temperature History - Sep 18

more Historical Weather Data >
  Today Normal Record 9/18/2013
High 12° 19° 31° (1942) 22°
Low -1° (1943)

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:45 AM with 12:24 of sunlight, then sets at 7:09 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:24 AM with 14:44 of moolight, then sets at 4:08 PM

Top Story

Ottawa Weather Report

Long Winter Nights, Dry Air Increase Chance to View Aurora

September 17, 2014; 6:16 PM ET

Igniting across Northern skies, ghostly rivers of light dance overhead each year, emitting vibrant shades of green, blue, pink, red and violet. more >