Climate almanac
Grand River South
Ontario, Canada · 43.45°, -80.40°
What is the weather like in Grand River South in August?
In August, Grand River South is typically 77°F (25°C) during the day and 60°F (15°C) at night. The month brings about 3.5 in (89 mm) of precipitation in total.
- Average high77°F (25°C)
- Average low60°F (15°C)
- Precipitation3.5 in (89 mm)
- Clear or mostly clear days12
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)