Current Conditions
More Information
WeatherCity Home
Switch to Imperial Units
[ Almanac ]  
Sunrise:  5:44 am
Sunset:  9:10 pm
[ Moon Phases ]  

Full Moon
Jun 30

Last Quarter
Jul 7

New Moon
Jul 15

First Quarter
Jul 22




June 26th, 2026 :: 3:46 am EDT   

Local Weather Report for
St Marys
Ontario, Canada

 St Marys Weather Forecast Summary  
 
Today
Jun 26th 		Saturday
Jun 27th 		Sunday
Jun 28th 		Monday
Jun 29th 		Tuesday
Jun 30th
Mix of Sun and Cloud Mostly Sunny Mostly Sunny Mostly Sunny Mostly Sunny
18°C
 23°C
12°C		 24°C
14°C		 26°C
15°C		 30°C
16°C
 
 St Marys Detailed Weather Forecast  
 
Friday, June 26th, 2026
Overnight Temperature: 13°C
Clear.
Morning Temperature: 16°C
A mix of sun and cloud.
Afternoon Temperature: 18°C
A mix of cloud and sun.
Evening Temperature: 15°C
A mix of cloudy and clear skies.
Saturday, June 27th, 2026
Overnight Temperature: 13°C
Clear with cloudy periods.
Morning Temperature: 18°C
Sunny with cloudy periods.
Afternoon Temperature: 23°C
A mix of sun and cloud.
Evening Temperature: 18°C
Mostly clear.
Sunday, June 28th, 2026
Overnight Temperature: 14°C
Mostly clear.
Morning Temperature: 19°C
Mostly sunny.
Afternoon Temperature: 24°C
Sunny.
Evening Temperature: 19°C
Clear.
Monday, June 29th, 2026
Overnight Temperature: 16°C
Clear.
Morning Temperature: 20°C
Mostly sunny. Windy at times.
Afternoon Temperature: 26°C
Sunny. Windy at times.
Evening Temperature: 20°C
Mostly clear.
Tuesday, June 30th, 2026
Overnight Temperature: 17°C
Mostly clear.
Morning Temperature: 23°C
Mostly sunny. Slight chance of a thunderstorm.
Afternoon Temperature: 30°C
Sunny. Chance of a thunderstorm. Windy at times.
Evening Temperature: 25°C
Mostly clear. Chance of a thunderstorm.
Wednesday, July 1st, 2026
Overnight Temperature: 22°C
Clear. Chance of a thunderstorm.
Morning Temperature: 27°C
Sunny. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 31°C
Sunny. Chance of a thunderstorm. Windy at times.
Evening Temperature: 27°C
Clear. Chance of a thunderstorm.
Thursday, July 2nd, 2026
Overnight Temperature: 22°C
Clear. Chance of a thunderstorm.
Morning Temperature: 27°C
Sunny. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 31°C
Sunny. Chance of a thunderstorm. Windy at times.
Evening Temperature: 27°C
Clear. Chance of a thunderstorm. Windy at times.
Friday, July 3rd, 2026
Overnight Temperature: 23°C
Clear. Chance of a thunderstorm. Windy at times.
Morning Temperature: 27°C
Sunny. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 31°C
Sunny. Chance of a thunderstorm. Windy at times.
Evening Temperature: 26°C
Clear with showers likely. Chance of a thunderstorm.



 

  [ Local Weather Report ]
Saint Marys, ON 
 
Browns Corners, ON 
 
Blanshard, ON 
 
Downie, ON 
 
Granton, ON 
 
Thorndale, ON 
 
Stratford, ON 
 
Holiday, ON 
 
South Easthope, ON 
 
Lucan, ON 

 
This WeatherCity Weather Forecast for St Marys, Ontario, Canada is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office
  St Marys weather brought to you by WeatherCity Server: us-chi1   Rendered in 0.01339s  
Home   |   About WeatherCity