• Early AM

    Sep 1

    Lo 14°

    Clear

    Hair Frizz Weather
    • Wind
      Gust
      19 k/h
    • Precip
      1%
    • Hours of Precip
      0
    more
  • Today

    Sep 1

    30°Lo 16°

    Mostly sunny, warm and humid

    Advisory for hair frizz
    • Wind
      Gust
      15 k/h
    • Precip
      3%
    • Hours of Precip
      0
    more
  • Wed

    Sep 2

    30°Lo 17°

    An afternoon thunderstorm

    Warning for hair frizz
    • Wind
      Gust
      13 k/h
    • Precip
      55%
    • Hours of Precip
      1.5
    more
  • Thu

    Sep 3

    28°Lo 13°

    Mostly sunny, warm and humid

    Warning for hair frizz
    • Wind
      Gust
      17 k/h
    • Precip
      0%
    • Hours of Precip
      0
    more
  • Fri

    Sep 4

    25°Lo 12°

    Mostly sunny and warm

    Watch for hair frizz
    • Wind
      Gust
      11 k/h
    • Precip
      0%
    • Hours of Precip
      0
Next Previous
< Previous 8 hours Next 8 hours >
  Fri
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°C) 17° 19° 21° 23° 24° 24° 25° 24°
RealFeel® 17° 20° 23° 25° 26° 27° 27° 25°
Humidity 71% 64% 57% 53% 50% 48% 46% 48%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
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0%
Ice
 
0%
 
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  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (km/h) 11 E 11 E 11 ESE 11 ESE 11 ESE 11 E 11 ESE 11 ESE
UV Index 2 3 4 5 5 5 4 3
Cloud Cover 20% 20% 20% 20% 20% 20% 20% 20%
Dew Point 12° 12° 12° 13° 13° 13° 13° 13°
Middle Grid line 30 C Middle Grid line 25 C Middle Grid line 20 C Middle Grid line 15 C

Temperature History - Sep 4

more Historical Weather Data >
  Today Normal Record 9/4/2014
High 25° 22° 35° (1953) 28°
Low 12° 11° (1942) 13°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:28 AM with 13:07 of sunlight, then sets at 7:35 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:28 PM with 14:58 of moolight, then sets at 2:26 PM

Ottawa Weather Report

Oppressive Heat Adds Stress to Physical, Mental Health of Homeless People From US to Canada This Summer

September 1, 2015; 2:27 AM ET

Hot weather this summer from the central United States into Canada has put extra stress on some of the most vulnerable residents: the homeless. more >