Weather Forecast and Radar for Sarnia, Ontario

Weather in Sarnia, ON

Sarnia, Ontario experiences four distinct seasons and a wide range of temperatures. During the winter months, the average temperature is around -2°C (28°F). Snowfall is common, and temperatures can drop below -10°C (14°F). During the spring, temperatures are milder, averaging around 10°C (50°F). Rain is common throughout the season, and temperatures can reach as high as 25°C (77°F). In the summer, the average temperature is around 22°C (71°F). This is the warmest season, and temperatures can reach up to 30°C (86°F). During the fall, temperatures drop back down to around 10°C (50°F). Rain is common throughout the season, and temperatures can drop as low as -5°C (23°F).

Fast Facts About Sarnia, ON

As of 2020, the city population is 71594.

Major Cities Nearby Sarnia, ON

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