Grimsby, ON 7-Day Weather Forecast
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Grimsby, ON Weather Forecast


Grimsby, ON Weather Forecast Date: 1201 PM Thu Sep 24 2026 (Grimsby Time)
| Today Lo: 12°C54°F Hi: 16°C60°F |
Sunny Thursday, temperatures as high as 16°C60°F, low temperature around 12°C54°F, chance of rain 4%, wind out of the ENE 19 km/h12 mph. Barometric pressure 103.2 kPa30.47 in, visibility 10 km6 mi, humidity 61%. |
| Friday Lo: 13°C55°F Hi: 18°C65°F |
Overcast Friday, temperatures as high as 18°C65°F, low temperature around 13°C55°F, chance of rain 14%, wind out of the NE 13 km/h8 mph. Barometric pressure 102.7 kPa30.33 in, visibility 10 km6 mi, humidity 58%. |
| Saturday Lo: 13°C56°F Hi: 20°C68°F |
Sunny Saturday, temperatures as high as 20°C68°F, low temperature around 13°C56°F, chance of rain 3%, wind out of the NNE 9 km/h6 mph. Barometric pressure 102.2 kPa30.18 in, visibility 10 km6 mi, humidity 53%. |
| Sunday Lo: 14°C57°F Hi: 22°C71°F |
Cloudy Sunday, temperatures as high as 22°C71°F, low temperature around 14°C57°F, chance of rain 10%, wind out of the N 13 km/h8 mph. Barometric pressure 101.7 kPa30.03 in, visibility 10 km6 mi, humidity 61%. |
| Monday Lo: 14°C57°F Hi: 21°C70°F |
Sunny Monday, temperatures as high as 21°C70°F, low temperature around 14°C57°F, chance of rain 3%, wind out of the NE 11 km/h7 mph. Barometric pressure 101.8 kPa30.06 in, visibility 10 km6 mi, humidity 57%. |
| Tuesday Lo: 16°C60°F Hi: 22°C72°F |
Sunny Tuesday, temperatures as high as 22°C72°F, low temperature around 16°C60°F, chance of rain 4%, wind out of the SSE 8 km/h5 mph. Barometric pressure 101.8 kPa30.06 in, visibility 10 km6 mi, humidity 63%. |
| Wednesday Lo: 17°C62°F Hi: 27°C80°F |
Overcast Wednesday, temperatures as high as 27°C80°F, low temperature around 17°C62°F, chance of rain 12%, wind out of the SSW 30 km/h19 mph. Barometric pressure 101.2 kPa29.88 in, visibility 10 km6 mi, humidity 53%. |
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