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September 18th, 2025 :: 2:29 pm MDT   

Local Weather Report for
Castle Island
Alberta, Canada

 Castle Island Weather Forecast Summary  
 
Today
Sep 18th
Friday
Sep 19th
Saturday
Sep 20th
Sunday
Sep 21st
Monday
Sep 22nd
Cloudy Cloudy Cloudy Cloudy Cloudy
21°C
22°C
9°C
26°C
10°C
17°C
8°C
22°C
6°C
 
 Castle Island Detailed Weather Forecast  
 
Thursday, September 18th, 2025
Afternoon Temperature: 21°C
Cloudy.
Evening Temperature: 14°C
Cloudy.
Friday, September 19th, 2025
Overnight Temperature: 11°C
Cloudy.
Morning Temperature: 17°C
A mix of cloud and sun. Windy at times.
Afternoon Temperature: 21°C
Mostly sunny.
Evening Temperature: 13°C
Cloudy.
Saturday, September 20th, 2025
Overnight Temperature: 11°C
Clear.
Morning Temperature: 20°C
Cloudy. Windy at times.
Afternoon Temperature: 26°C
Sunny. Windy at times.
Evening Temperature: 16°C
Cloudy.
Sunday, September 21st, 2025
Overnight Temperature: 14°C
A mix of cloudy and clear skies.
Morning Temperature: 17°C
Cloudy. Windy.
Afternoon Temperature: 17°C
A mix of cloud and sun. Windy at times.
Evening Temperature: 9°C
Clear.
Monday, September 22nd, 2025
Overnight Temperature: 6°C
Clear.
Morning Temperature: 16°C
Cloudy. Windy at times.
Afternoon Temperature: 22°C
A mix of cloud and sun. Windy at times.
Evening Temperature: 13°C
A mix of cloudy and clear skies. Windy at times.
Tuesday, September 23rd, 2025
Overnight Temperature: 9°C
Clear.
Morning Temperature: 17°C
Cloudy. Windy at times.
Afternoon Temperature: 19°C
Cloudy. Windy at times.
Evening Temperature: 12°C
A mix of cloudy and clear skies.
Wednesday, September 24th, 2025
Overnight Temperature: 8°C
A mix of cloudy and clear skies.
Morning Temperature: 16°C
Cloudy.
Afternoon Temperature: 17°C
Cloudy. Windy at times.
Evening Temperature: 12°C
Cloudy. Windy at times.
Thursday, September 25th, 2025
Overnight Temperature: 8°C
Cloudy.
Morning Temperature: 13°C
Cloudy. Windy at times.
Afternoon Temperature: 14°C
Cloudy.
Evening Temperature: 10°C
Cloudy with a slight chance of showers.
Friday, September 26th, 2025
Overnight Temperature: 8°C
Cloudy with a chance of showers.
Morning Temperature: 7°C
Cloudy with showers likely. Windy at times.
Afternoon Temperature: 7°C
Cloudy with showers likely. Windy at times.
Evening Temperature: 6°C
Cloudy with showers likely. Windy at times.





 

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This WeatherCity Weather Forecast for Castle Island, Alberta, 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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