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August 4th, 2025 :: 5:48 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 Cloudy Mix of Cloud and Sun Mix of Cloud and Sun
85°F
83°F
63°F
83°F
62°F
85°F
66°F
86°F
65°F
 
 Newcastle Detailed Weather Forecast  
 
Monday, August 4th, 2025
Morning Temperature: 83°F
Sunny. Windy at times.
Afternoon Temperature: 79°F
Cloudy. Windy at times.
Evening Temperature: 66°F
Cloudy.
Tuesday, August 5th, 2025
Overnight Temperature: 65°F
Cloudy.
Morning Temperature: 80°F
Cloudy. Windy at times.
Afternoon Temperature: 78°F
A mix of cloud and sun. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 65°F
Clear with cloudy periods.
Wednesday, August 6th, 2025
Overnight Temperature: 66°F
Clear with cloudy periods.
Morning Temperature: 81°F
Cloudy. Slight chance of a thunderstorm. Windy at times.
Afternoon Temperature: 79°F
Cloudy. Slight chance of a thunderstorm.
Evening Temperature: 65°F
A mix of cloudy and clear skies with a chance of showers.
Thursday, August 7th, 2025
Overnight Temperature: 68°F
A mix of cloudy and clear skies. Slight chance of a thunderstorm.
Morning Temperature: 82°F
Sunny. Windy at times.
Afternoon Temperature: 81°F
Sunny.
Evening Temperature: 67°F
Clear.
Friday, August 8th, 2025
Overnight Temperature: 69°F
Clear.
Morning Temperature: 83°F
A mix of cloud and sun. Windy at times.
Afternoon Temperature: 82°F
A mix of cloud and sun. Windy at times.
Evening Temperature: 71°F
A mix of cloudy and clear skies.
Saturday, August 9th, 2025
Overnight Temperature: 72°F
Cloudy. Windy at times.
Morning Temperature: 85°F
A mix of cloud and sun. Slight chance of a thunderstorm. Windy at times.
Afternoon Temperature: 88°F
Mostly sunny with a slight chance of showers. Windy at times.
Evening Temperature: 70°F
Clear with showers likely.
Sunday, August 10th, 2025
Overnight Temperature: 70°F
A mix of cloudy and clear skies with a slight chance of showers.
Morning Temperature: 86°F
Cloudy. Slight chance of a thunderstorm. Windy at times.
Afternoon Temperature: 85°F
Cloudy. Slight chance of a thunderstorm.
Evening Temperature: 72°F
Cloudy.
Monday, August 11th, 2025
Overnight Temperature: 72°F
A mix of cloudy and clear skies. Chance of a thunderstorm.
Morning Temperature: 87°F
Sunny with cloudy periods. Chance of a thunderstorm. Windy.
Afternoon Temperature: 84°F
A mix of cloud and sun. Chance of a thunderstorm. Windy at times.
Evening Temperature: 71°F
Clear. Slight chance of a thunderstorm.
Tuesday, August 12th, 2025
Overnight Temperature: 72°F
A mix of cloudy and clear skies. Slight chance of a thunderstorm. Windy at times.
Morning Temperature: 86°F
Cloudy. Slight chance of a thunderstorm. Windy.
Afternoon Temperature: 82°F
A mix of cloud and sun with a chance of showers or thundershowers. Windy.
Evening Temperature: 74°F
Cloudy.





 

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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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