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August 12th, 2026 :: 1:20 pm EDT   

Local Weather Report for
Smiths Falls
Ontario, Canada

 Smiths Falls Weather Forecast Summary  
 
Today
Aug 12th
Thursday
Aug 13th
Friday
Aug 14th
Saturday
Aug 15th
Sunday
Aug 16th
Mix of Sun and Cloud Mostly Sunny Mix of Sun and Cloud Mostly Sunny Mostly Cloudy
26°C
24°C
13°C
23°C
12°C
24°C
12°C
20°C
16°C
 
 Smiths Falls Detailed Weather Forecast  
 
Wednesday, August 12th, 2026
Afternoon Temperature: 24°C
Mostly cloudy. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 16°C
Clear with a chance of showers. Slight chance of a thunderstorm.
Thursday, August 13th, 2026
Overnight Temperature: 14°C
Clear with cloudy periods with a chance of showers.
Morning Temperature: 18°C
Sunny. Slight chance of a thunderstorm.
Afternoon Temperature: 24°C
Sunny with cloudy periods. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 17°C
Clear.
Friday, August 14th, 2026
Overnight Temperature: 13°C
Clear.
Morning Temperature: 19°C
Sunny with cloudy periods.
Afternoon Temperature: 20°C
Cloudy with a chance of showers. Slight chance of a thunderstorm.
Evening Temperature: 15°C
Clear with a chance of showers.
Saturday, August 15th, 2026
Overnight Temperature: 12°C
Mostly clear.
Morning Temperature: 17°C
A mix of cloud and sun.
Afternoon Temperature: 24°C
Mostly sunny.
Evening Temperature: 17°C
A mix of clear and cloudy skies.
Sunday, August 16th, 2026
Overnight Temperature: 16°C
Mostly cloudy.
Morning Temperature: 17°C
Mostly cloudy with a chance of showers.
Afternoon Temperature: 19°C
A mix of cloud and sun with a chance of showers.
Evening Temperature: 19°C
A mix of cloudy and clear skies with a chance of showers.
Monday, August 17th, 2026
Overnight Temperature: 15°C
A mix of clear and cloudy skies. Windy at times.
Morning Temperature: 17°C
Sunny.
Afternoon Temperature: 24°C
Sunny.
Evening Temperature: 17°C
Clear.
Tuesday, August 18th, 2026
Overnight Temperature: 15°C
Mostly cloudy.
Morning Temperature: 21°C
A mix of sun and cloud.
Afternoon Temperature: 25°C
A mix of cloud and sun. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 20°C
Mostly cloudy.
Wednesday, August 19th, 2026
Overnight Temperature: 18°C
Mostly cloudy.
Morning Temperature: 20°C
Mostly cloudy with a chance of showers or thundershowers. Windy at times.
Afternoon Temperature: 23°C
A mix of sun and cloud with a chance of showers or thundershowers.
Evening Temperature: 18°C
Clear with cloudy periods with a chance of showers or thundershowers.
Thursday, August 20th, 2026
Overnight Temperature: 16°C
Clear.
Morning Temperature: 21°C
Sunny with cloudy periods. Windy at times.
Afternoon Temperature: 25°C
Sunny with cloudy periods. Windy at times.
Evening Temperature: 17°C
Mostly cloudy. Windy at times.





 

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This WeatherCity Weather Forecast for Smiths Falls, 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

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