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August 4th, 2025 :: 2:24 am EDT   

Local Weather Report for
Newcastle
Ontario, Canada

 Newcastle Weather Forecast Summary  
 
Today
Aug 4th
Tuesday
Aug 5th
Wednesday
Aug 6th
Thursday
Aug 7th
Friday
Aug 8th
Cloudy Cloudy Showers Mostly Sunny Mostly Sunny
31°C
28°C
17°C
30°C
17°C
30°C
17°C
31°C
18°C
 
 Newcastle Detailed Weather Forecast  
 
Monday, August 4th, 2025
Overnight Temperature: 18°C
Clear.
Morning Temperature: 29°C
Sunny. Windy at times.
Afternoon Temperature: 28°C
Cloudy. Windy at times.
Evening Temperature: 19°C
Cloudy.
Tuesday, August 5th, 2025
Overnight Temperature: 19°C
Cloudy.
Morning Temperature: 27°C
Cloudy. Slight chance of a thunderstorm. Windy at times.
Afternoon Temperature: 26°C
Cloudy. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 19°C
Clear with cloudy periods.
Wednesday, August 6th, 2025
Overnight Temperature: 18°C
Cloudy with a chance of showers.
Morning Temperature: 27°C
Sunny with cloudy periods. Slight chance of a thunderstorm. Windy at times.
Afternoon Temperature: 27°C
A mix of cloud and sun. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 18°C
Clear with cloudy periods with showers likely.
Thursday, August 7th, 2025
Overnight Temperature: 19°C
Clear with cloudy periods. Slight chance of a thunderstorm.
Morning Temperature: 27°C
Sunny with cloudy periods. Slight chance of a thunderstorm. Windy at times.
Afternoon Temperature: 28°C
Sunny.
Evening Temperature: 20°C
Clear.
Friday, August 8th, 2025
Overnight Temperature: 20°C
Clear.
Morning Temperature: 28°C
Sunny. Windy at times.
Afternoon Temperature: 29°C
Sunny with cloudy periods. Windy at times.
Evening Temperature: 21°C
Clear.
Saturday, August 9th, 2025
Overnight Temperature: 21°C
Clear. Windy at times.
Morning Temperature: 29°C
Sunny. Windy at times.
Afternoon Temperature: 29°C
Sunny. Windy at times.
Evening Temperature: 21°C
Clear.
Sunday, August 10th, 2025
Overnight Temperature: 21°C
Clear.
Morning Temperature: 31°C
Sunny. Windy at times.
Afternoon Temperature: 30°C
Mostly sunny. Windy at times.
Evening Temperature: 24°C
Clear with cloudy periods.
Monday, August 11th, 2025
Overnight Temperature: 22°C
Cloudy with a chance of showers.
Morning Temperature: 27°C
Cloudy with showers likely. Chance of a thunderstorm.
Afternoon Temperature: 29°C
Cloudy with a chance of showers.
Evening Temperature: 21°C
A mix of cloudy and clear skies.





 

  [ Local Weather Report ]
Bowmanville, ON 
1:00 AM  15°C
mist
 
Port Darlington, ON 
1:00 AM  15°C
mist
 
Clarington, ON 
1:00 AM  15°C
mist
 
Salem, ON 
1:00 AM  15°C
mist
 
Tyrone, ON 
1:00 AM  15°C
mist
 
Decker Hollow, ON 
 
Pontypool, ON 
 
Burketon Station, ON 
1:00 AM  15°C
mist
 
Oshawa, ON 
1:00 AM  15°C
mist
 
Port Hope, ON 
1:00 AM  18°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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