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September 1st, 2025 :: 7:52 pm EDT   

Local Weather Report for
Newcastle
Ontario, Canada

 Newcastle Weather Forecast Summary  
 
Today
Sep 1st
Tuesday
Sep 2nd
Wednesday
Sep 3rd
Thursday
Sep 4th
Friday
Sep 5th
Cloudy Cloudy Cloudy Showers Cloudy
25°C
25°C
14°C
26°C
14°C
24°C
13°C
19°C
10°C
 
 Newcastle Detailed Weather Forecast  
 
Monday, September 1st, 2025
Evening Temperature: 14°C
Cloudy.
Tuesday, September 2nd, 2025
Overnight Temperature: 15°C
Cloudy.
Morning Temperature: 24°C
Cloudy. Slight chance of a thunderstorm.
Afternoon Temperature: 21°C
Cloudy with sunny periods. Slight chance of a thunderstorm.
Evening Temperature: 15°C
A mix of cloudy and clear skies.
Wednesday, September 3rd, 2025
Overnight Temperature: 16°C
Clear with cloudy periods.
Morning Temperature: 25°C
Sunny with cloudy periods. Windy at times.
Afternoon Temperature: 21°C
Sunny. Windy at times.
Evening Temperature: 17°C
Cloudy.
Thursday, September 4th, 2025
Overnight Temperature: 18°C
Cloudy with a slight chance of showers. Windy at times.
Morning Temperature: 22°C
Cloudy with a chance of showers. Slight chance of a thunderstorm. Windy.
Afternoon Temperature: 15°C
Cloudy with showers.
Evening Temperature: 14°C
Cloudy with a slight chance of showers.
Friday, September 5th, 2025
Overnight Temperature: 11°C
Cloudy.
Morning Temperature: 17°C
Cloudy. Windy at times.
Afternoon Temperature: 18°C
Sunny with cloudy periods. Windy.
Evening Temperature: 15°C
Clear with cloudy periods. Windy at times.
Saturday, September 6th, 2025
Overnight Temperature: 13°C
Cloudy with a slight chance of showers.
Morning Temperature: 17°C
Sunny with cloudy periods. Windy at times.
Afternoon Temperature: 17°C
A mix of cloud and sun. Windy.
Evening Temperature: 10°C
Clear.
Sunday, September 7th, 2025
Overnight Temperature: 10°C
Clear with cloudy periods.
Morning Temperature: 15°C
A mix of cloud and sun with a chance of showers. Windy.
Afternoon Temperature: 13°C
Sunny with cloudy periods. Windy.
Evening Temperature: 8°C
Clear.
Monday, September 8th, 2025
Overnight Temperature: 8°C
Cloudy.
Morning Temperature: 17°C
Sunny. Windy at times.
Afternoon Temperature: 15°C
Cloudy. Windy at times.
Evening Temperature: 13°C
Cloudy.
Tuesday, September 9th, 2025
Overnight Temperature: 13°C
Cloudy.
Morning Temperature: 22°C
Cloudy. Windy at times.
Afternoon Temperature: 20°C
A mix of cloud and sun. Windy at times.
Evening Temperature: 14°C
Cloudy.





 

  [ Local Weather Report ]
Bowmanville, ON 
7:00 PM  22°C
 
 
Port Darlington, ON 
7:00 PM  22°C
 
 
Clarington, ON 
7:00 PM  22°C
 
 
Salem, ON 
7:00 PM  22°C
 
 
Tyrone, ON 
7:00 PM  22°C
 
 
Decker Hollow, ON 
 
Pontypool, ON 
 
Burketon Station, ON 
7:00 PM  22°C
 
 
Oshawa, ON 
7:00 PM  22°C
 
 
Port Hope, ON 
7:00 PM  21°C
 

This WeatherCity Weather Forecast for Newcastle, 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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