Newcastle, ON 7-Day Weather Forecast
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Newcastle, ON Weather Forecast


Newcastle, ON Weather Forecast Date: 1131 AM Sun Sep 27 2026 (Newcastle Time)
| Today Lo: 12°C53°F Hi: 24°C76°F |
Partly Cloudy Sunday, temperatures as high as 24°C76°F, low temperature around 12°C53°F, chance of rain 4%, wind out of the NNE 24 km/h15 mph. Barometric pressure 101.5 kPa29.97 in, visibility 10 km6 mi, humidity 33%. |
| Monday Lo: 12°C54°F Hi: 20°C69°F |
Overcast Monday, temperatures as high as 20°C69°F, low temperature around 12°C54°F, chance of rain 12%, wind out of the NE 13 km/h8 mph. Barometric pressure 101.5 kPa29.97 in, visibility 10 km6 mi, humidity 57%. |
| Tuesday Lo: 13°C56°F Hi: 21°C70°F |
Partly Cloudy Tuesday, temperatures as high as 21°C70°F, low temperature around 13°C56°F, chance of rain 7%, wind out of the SSW 9 km/h6 mph. Barometric pressure 101.8 kPa30.06 in, visibility 10 km6 mi, humidity 66%. |
| Wednesday Lo: 14°C58°F Hi: 22°C71°F |
Overcast Wednesday, temperatures as high as 22°C71°F, low temperature around 14°C58°F, chance of rain 13%, wind out of the SSW 14 km/h9 mph. Barometric pressure 101.8 kPa30.06 in, visibility 10 km6 mi, humidity 56%. |
| Thursday Lo: 14°C57°F Hi: 28°C82°F |
Overcast Thursday, temperatures as high as 28°C82°F, low temperature around 14°C57°F, chance of rain 11%, wind out of the SSW 24 km/h15 mph. Barometric pressure 101.1 kPa29.85 in, visibility 10 km6 mi, humidity 47%. |
| Friday Lo: 14°C57°F Hi: 19°C66°F |
Overcast Friday, temperatures as high as 19°C66°F, low temperature around 14°C57°F, chance of rain 26%, wind out of the ESE 8 km/h5 mph. Barometric pressure 101.5 kPa29.97 in, visibility 10 km6 mi, humidity 84%. |
| Saturday Lo: 10°C50°F Hi: 19°C66°F |
Sunny Saturday, temperatures as high as 19°C66°F, low temperature around 10°C50°F, chance of rain 1%, wind out of the ENE 15 km/h9 mph. Barometric pressure 102.5 kPa30.27 in, visibility 10 km6 mi, humidity 34%. |
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