Weather Forecast and Radar for St. Catharines, Ontario

Weather in St. Catharines, ON

St. Catharines, Ontario experiences a range of weather throughout the year. In the winter months, temperatures average around -3°C (27°F). January is typically the coldest month, with temperatures ranging from -11°C (12°F) to 4°C (39°F). Snowfall averages around 81cm (32in).

In the spring, temperatures range from 1°C (34°F) to 17°C (62°F). April is usually the warmest month and the weather can be quite unpredictable, with snowfall and rain showers happening regularly.

In the summer, temperatures range from 17°C (62°F) to 29°C (84°F). July is usually the hottest month, with temperatures averaging around 22°C (71°F). The area experiences an average of 64cm (25in) of rain throughout the summer months.

The fall months bring temperatures that range from 11°C (52°F) to 22°C (71°F). October is usually the warmest month, with temperatures averaging around 14°C (57°F). The area experiences an average of 64cm (25in) of rain throughout the fall months.

Fast Facts About St. Catharines, ON

As of 2020, the city population is 309319.

Major Cities Nearby St. Catharines, ON

This map shows the current & 7-day weather forecast, weather alerts, and weather radar for St. Catharines, Ontario.