• Today

    May 21

    18°Lo 13°

    Mostly cloudy with showers

    Advisory for hair frizz
    • Wind
      Gust
      32 k/h
    • Precip
      65%
    • Hours of Precip
      5
  • Wed

    May 22

    22°Lo 12°

    Mostly cloudy, a little rain

    Warning for hair frizz
    • Wind
      Gust
      14 k/h
    • Precip
      63%
    • Hours of Precip
      8.5
    more
  • Thu

    May 23

    19°Lo 4°

    Periods of rain

    Advisory for hair frizz
    • Wind
      Gust
      29 k/h
    • Precip
      65%
    • Hours of Precip
      7.5
    more
  • Fri

    May 24

    15°Lo 2°

    A shower around, mainly early

    Unlikely for hair frizz
    • Wind
      Gust
      35 k/h
    • Precip
      55%
    • Hours of Precip
      0.5
    more
  • Sat

    May 25

    17°Lo 3°

    Partly sunny

    Unlikely for hair frizz
    • Wind
      Gust
      23 k/h
    • Precip
      1%
    • Hours of Precip
      0
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Tue
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Cloudy
Cloudy
Mostly Cloudy
Showers
Partly Cloudy
Partly Cloudy
Partly Cloudy
Showers
Temp (°C) 15° 15° 15° 16° 17° 17° 18° 18°
RealFeel® 12° 13° 13° 14° 16° 17° 17° 16°
Humidity 87% 81% 78% 75% 72% 72% 68% 67%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
34%
 
37%
 
47%
 
51%
 
47%
 
46%
 
49%
 
54%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (km/h) 16 NNE 18 NNE 21 NNE 21 NNE 23 NNE 23 NE 23 ENE 21 ENE
UV Index 1 1 2 3 4 5 5 3
Cloud Cover 100% 94% 88% 78% 73% 67% 71% 74%
Dew Point 13° 12° 12° 12° 12° 12° 12° 12°
Middle Grid line 20 C Middle Grid line 15 C Middle Grid line 10 C

Temperature History - May 21

more Historical Weather Data >
  Today Normal Record 5/21/2012
High 18° 20° 32° (1941) 29°
Low 13° (1967) 15°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:27 AM with 15:05 of sunlight, then sets at 8:32 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:33 PM with 11:03 of moolight, then sets at 3:36 AM

Top Story

Ottawa Weather Report

The Summer Outlook for Canada

May 20, 2013; 2:44 PM ET

The Accuweather.com summer forecast for Canada. more >