Ottawa Airport (YOW):

Forecasts

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

   Current Official Forecast:

 [Source]

Forecasts issued Mon, September 8, 2025 at 15:30:

Summary:
Tuesday Wednesday Thursday Friday Saturday Sunday
 

 
 
 
 
 
 

 
Sunny. Sunny. A mix of sun and cloud. Sunny. A mix of sun and cloud. Chance of showers.
POP 0% POP 0% POP 0% POP 0% POP 0% 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:
       
Monday night Tuesday night Wednesday night Thursday night Friday night Saturday night  
 
 
 
 
 
 
A few clouds. Clear. Cloudy periods. Clear. Clear. Chance of showers.
POP 0% POP 0% POP 0% POP 0% POP 0% 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 night: Partly cloudy. Becoming clear this evening. Fog patches developing overnight. Low 6.
Tuesday: Sunny. Fog patches dissipating in the morning. High 23. UV index 6 or high.
Tuesday night: Clear. Low 7.
Wednesday: Sunny. High 26.
Wednesday night: Cloudy periods. Low 13.
Thursday: Sunny. High 21.
Thursday night: Clear. Low 7.
Friday: Sunny. High 21.
Friday night: Clear. Low 10.
Saturday: A mix of sun and cloud. High 22.
Saturday night: Cloudy with 30 percent chance of showers. Low 13. POP 30%.
Sunday: A mix of sun and cloud with 30 percent chance of showers. High 23. POP 30%.