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July 18th, 2026 :: 11:13 pm EDT   

Local Weather Report for
Arnprior
Ontario, Canada

 Arnprior Weather Forecast Summary  
 
Today
Jul 18th
Sunday
Jul 19th
Monday
Jul 20th
Tuesday
Jul 21st
Wednesday
Jul 22nd
Thundershowers Mostly Sunny Mostly Sunny Showers Mostly Cloudy with Showers
24°C
23°C
14°C
27°C
12°C
24°C
15°C
22°C
13°C
 
 Arnprior Detailed Weather Forecast  
 
Sunday, July 19th, 2026
Overnight Temperature: 14°C
Clear with cloudy periods. Windy at times.
Morning Temperature: 17°C
Mostly sunny. Windy at times.
Afternoon Temperature: 23°C
Sunny. Windy at times.
Evening Temperature: 16°C
Clear.
Monday, July 20th, 2026
Overnight Temperature: 13°C
Mostly clear.
Morning Temperature: 19°C
Mostly sunny.
Afternoon Temperature: 27°C
Sunny with cloudy periods. Windy at times.
Evening Temperature: 18°C
A mix of cloudy and clear skies.
Tuesday, July 21st, 2026
Overnight Temperature: 17°C
Cloudy.
Morning Temperature: 21°C
A mix of sun and cloud. Windy at times.
Afternoon Temperature: 20°C
Cloudy with a chance of showers. Windy at times.
Evening Temperature: 19°C
Cloudy with showers likely. Windy at times.
Wednesday, July 22nd, 2026
Overnight Temperature: 19°C
Cloudy with showers likely.
Morning Temperature: 19°C
A mix of cloud and sun with a chance of showers. Slight chance of a thunderstorm. Windy at times.
Afternoon Temperature: 21°C
Mostly sunny with a chance of showers. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 13°C
A mix of cloudy and clear skies with a chance of showers. Windy at times.
Thursday, July 23rd, 2026
Overnight Temperature: 11°C
A mix of cloudy and clear skies. Windy at times.
Morning Temperature: 14°C
A mix of cloud and sun. Windy at times.
Afternoon Temperature: 21°C
Sunny with cloudy periods. Windy at times.
Evening Temperature: 17°C
Mostly clear.
Friday, July 24th, 2026
Overnight Temperature: 13°C
Clear with cloudy periods.
Morning Temperature: 19°C
Sunny.
Afternoon Temperature: 25°C
Sunny with cloudy periods.
Evening Temperature: 18°C
Mostly clear.
Saturday, July 25th, 2026
Overnight Temperature: 15°C
A mix of cloudy and clear skies.
Morning Temperature: 18°C
Cloudy.
Afternoon Temperature: 27°C
Sunny. Windy at times.
Evening Temperature: 20°C
Clear with cloudy periods. Windy at times.
Sunday, July 26th, 2026
Overnight Temperature: 17°C
Clear with cloudy periods.
Morning Temperature: 17°C
Mostly cloudy with a chance of showers.
Afternoon Temperature: 17°C
Mostly cloudy with a chance of showers.
Evening Temperature: 12°C
Clear with cloudy periods with a chance of showers.





 

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This WeatherCity Weather Forecast for Arnprior, 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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