Ottawa Airport (YOW):

Forecasts

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   Current Official Forecast:

 [Source]

Forecasts issued Mon, October 27, 2025 at 11:00:

Summary:
Monday Tuesday Wednesday Thursday Friday Saturday Sunday
 

 
 
 
 
 
 
 

 
Mainly sunny. Sunny. Sunny. Showers. Showers. Chance of showers. Chance of showers.
POP 0% POP 0% POP 0% POP 0% POP 0% POP 30% POP 30%
Precip: 0 mm Precip: 0 mm Precip: 0 mm Precip: 0 mm Precip: 0 mm Precip: 0 mm Precip: 0 mm
Wind: n/a @ - Wind: - @ - Wind: - @ - Wind: - @ - Wind: - @ - Wind: - @ - Wind: - @ -
Humidex: Humidex: Humidex: Humidex: Humidex: Humidex: Humidex:
Wind Chill: Wind Chill: Wind Chill: Wind Chill: Wind Chill: Wind Chill: Wind Chill:
Visibility: Visibility: Visibility: Visibility: Visibility: Visibility: Visibility:
       
Monday night Tuesday night Wednesday night Thursday night Friday night Saturday night  
 
 
 
 
 
 
Clear. Clear. Chance of showers. Showers. Chance of showers. Chance of showers.
POP 0% POP 0% POP 30% POP 0% POP 60% POP 30%  
Precip: 0 mm Precip: 0 mm Precip: 0 mm Precip: 0 mm Precip: 0 mm Precip: 0 mm  
Wind: - @ - Wind: - @ - Wind: - @ - Wind: - @ - Wind: - @ - Wind: - @ -  
Humidex: Humidex: Humidex: Humidex: Humidex: Humidex:  
Wind Chill: Wind Chill: Wind Chill: Wind Chill: Wind Chill: Wind Chill:  
Visibility: Visibility: Visibility: Visibility: Visibility: Visibility:  
       

Text Forecasts:
Monday: Mainly sunny. High 12. UV index 2 or low.
Monday night: Clear. Fog patches developing after midnight. Wind up to 15 km/h. Low minus 2. Wind chill minus 4 overnight.
Tuesday: Sunny. Fog patches dissipating in the morning. Wind up to 15 km/h. High 11. Wind chill minus 4 in the morning. UV index 3 or moderate.
Tuesday night: Clear. Low minus 4.
Wednesday: Sunny. High 10.
Wednesday night: Cloudy periods with 30 percent chance of showers. Low minus 2. POP 30%.
Thursday: Showers. High 8.
Thursday night: Showers. Low 6.
Friday: Showers. High 11.
Friday night: Cloudy with 60 percent chance of showers. Low plus 4. POP 60%.
Saturday: Cloudy with 30 percent chance of showers. High 6. POP 30%.
Saturday night: Cloudy with 30 percent chance of showers. Low plus 2. POP 30%.
Sunday: Cloudy with 30 percent chance of showers. High 7. POP 30%.