• Today

    May 23

    18°Lo 7°

    Mostly sunny and warmer

    High indoor dust & dander levels
    • Precip
      7%
    • Wind
      Speed
      20 k/h
    • Cloud
      Cover
      28%
  • Sun

    May 24

    27°Lo 11°

    Warmer; a morning shower

    Low indoor dust & dander levels
    • Precip
      50%
    • Wind
      Speed
      22 k/h
    • Cloud
      Cover
      38%
    more
  • Mon

    May 25

    24°Lo 15°

    Occasional rain and drizzle

    Low indoor dust & dander levels
    • Precip
      58%
    • Wind
      Speed
      17 k/h
    • Cloud
      Cover
      63%
    more
  • Tue

    May 26

    28°Lo 16°

    Periods of sun with a shower

    Low indoor dust & dander levels
    • Precip
      40%
    • Wind
      Speed
      22 k/h
    • Cloud
      Cover
      54%
    more
  • Wed

    May 27

    28°Lo 16°

    A couple of afternoon showers

    Low indoor dust & dander levels
    • Precip
      60%
    • Wind
      Speed
      24 k/h
    • Cloud
      Cover
      54%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sat
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  2am 3am 4am 5am 6am 7am 8am 9am
Forecast
Clear
Clear
Clear
Clear
Sunny
Sunny
Mostly Sunny
Partly Sunny
Temp (°C) -1° -1° -1° -2° -2° -3°
RealFeel® -5° -4° -2° -5° -4° -5°
Humidity 75% 75% 75% 75% 81% 87% 53% 42%
   
  2am 3am 4am 5am 6am 7am 8am 9am
Rain
 
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0%
Snow
 
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Ice
 
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  2am 3am 4am 5am 6am 7am 8am 9am
Wind (km/h) 13 WSW 11 WSW 7 WNW 11 W 9 WSW 11 W 11 WNW 17 WSW
UV Index 0 0 0 0 0 1 2 3
Cloud Cover 0% 0% 0% 0% 0% 0% 25% 40%
Dew Point -5° -5° -5° -6° -5° -5° -4° -5°
Middle Grid line 10 C Middle Grid line 5 C Middle Grid line 0 C

Temperature History - May 23

more Historical Weather Data >
  Today Normal Record 5/23/2014
High 18° 20° 32° (1975) 20°
Low (1967) 10°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:24 AM with 15:11 of sunlight, then sets at 8:35 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 10:42 AM with 14:13 of moolight, then sets at 12:55 AM

Ottawa Weather Report

Canada Summer Forecast: Active Wildfire Season in Store for West; Tropical Threat Low for Maritimes

May 23, 2015; 5:34 AM ET

The upcoming summer will be very warm across much of western and central Canada as the cool weather will be mostly confined to Atlantic Canada. more >