Ottawa Airport (YOW):

Current Weather

Times in Eastern Daylight Time (EDT = GMT-4)
<-CTO Ottawa Airport <-CTO Home <-Units of Measure <-Browse logs, etc. <-Diagnostic Page
Current Weather Forecasts Warnings Temperatures BP+RH Winds Precip
Records Normals
Today Yesterday Tomorrow This Month Last Month Next Month This Year Last Year
       Latest Observations from Environment Canada - Monday, June 30, 2025 at 21:00 EDT
   Current Condition: Mostly Cloudy

Airport   

CTO   
   Temperature:

   Humidex:

    

   Wind Chill Index:

    

   Relative Humidity:

 68 % 58 %

   Dew Point:

   Precip Today:

    

   Sunshine Today:

     12:50 h
 

Airport   

CTO      

   Barometric Pressure:

   - Trend:

 Falling   Falling  

   Winds:

 S at S at

   - Bearing (approx.):

 180 ° 180 °

   - Recent Gust:

  km/h    

   Visibility:

      

   Current Official Forecast:

 [Source]

Forecasts issued Mon, June 30, 2025 at 15:30:
Tuesday Wednesday Thursday Friday Saturday Sunday
POP 70% POP 0% POP 30% POP 0% POP 0% POP 40%
Monday night Tuesday night Wednesday night Thursday night Friday night Saturday night  
 
 
 
POP 70% POP 30% POP 0% POP 30% POP 0% POP 0%  
Monday night: Increasing cloudiness. 30 percent chance of showers changing to 70 percent chance of showers late this evening. Risk of a thunderstorm this evening and overnight. Wind south 20 km/h becoming light this evening. Low 19. POP 70%.
Tuesday: Cloudy with 70 percent chance of showers early in the morning then 30 percent chance of showers in the morning then a mix of sun and cloud. Risk of a thunderstorm in the morning. High 27. Humidex 35. UV index 9 or very high. POP 70%.
Tuesday night: Partly cloudy with 30 percent chance of showers in the evening. Becoming clear late in the evening and overnight. Risk of a thunderstorm in the evening. Low 16. POP 30%.
Wednesday: A mix of sun and cloud. High 29.
Wednesday night: Cloudy periods. Low 17.
Thursday: A mix of sun and cloud with 30 percent chance of showers. High 26. POP 30%.
Thursday night: Cloudy periods with 30 percent chance of showers. Low 13. POP 30%.
Friday: Sunny. High 27.
Friday night: Clear. Low 16.
Saturday: A mix of sun and cloud. High 29.
Saturday night: Cloudy. Low 20.
Sunday: Cloudy with 40 percent chance of showers. High 28. POP 40%.
 
   Today: 15:37 of daylight    Yesterday: 15:38 of daylight
 

Airport

CTO

   Sunrise:

 05:18 05:18

   Sunset:

 20:55 20:55
 
   Normal High:  

   Record High:

(1963)(2014)
   Normal Low:  

   Record Low:

(2022)(2004)
 

Airport

CTO

   Sunrise:

 05:17 05:17

   Sunset:

 20:55 20:55
 

   High:

(18:00)(15:39)

   Low:

(04:00)(06:19)

   Precip: