Centretown Observatory:

Forecasts

Times in Eastern Daylight Time (EDT = GMT-4)

(To see this page's template code, please Click Here.)
CTO <-Ottawa Airport <-CTO Home About News Notices Test Page Units of Measure Browse logs, etc. Diagnostic Page
Current Weather Forecasts Warnings Temperatures BP+RH Winds Precip
Records Normals Regional National
Today Yesterday Tomorrow This Month Last Month Next Month This Year Last Year Next Year
Bulk Data Query Webcam Query Master Recalc Extra Observations Stats Input Loc. Lookup List Query Observations Form

   Current Official Forecast:

 [Source]

Forecasts issued Mon, June 30, 2025 at 15:30:

Summary:
Tuesday Wednesday Thursday Friday Saturday Sunday
 

 
 
 
 
 
 

 
Chance of showers. A mix of sun and cloud. Chance of showers. Sunny. A mix of sun and cloud. Chance of showers.
POP 70% POP 0% POP 30% POP 0% POP 0% POP 40%
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: 35 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  
 
 
 
 
 
 
Chance of showers. Chance of showers. Cloudy periods. Chance of showers. Clear. Cloudy.
POP 70% POP 30% POP 0% POP 30% POP 0% POP 0%  
Precip: 0 mm Precip: 0 mm Precip: 0 mm Precip: 0 mm Precip: 0 mm Precip: 0 mm  
Wind: S @ 20 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: 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%.
 
This page was last regenerated 2025-06-30@21:00.
It is scheduled for regeneration whenever there is new data; approximately every five minutes.
(To see this page's template code, please Click Here.)