Weather Forecast and Radar for Thunder Bay, Ontario

Weather in Thunder Bay, ON

Thunder Bay, Ontario experiences four distinct seasons, each with its own unique weather. In the winter months (December to February), temperatures average between -13 and -7 degrees Celsius, with occasional snowfall and cold winds. During the spring (March to May), temperatures rise to between 0 and 10 degrees Celsius, with occasional showers and breezy winds. In the summer (June to August), temperatures range from 13 to 24 degrees Celsius, with sunny skies and occasional thunderstorms. Finally, in the autumn (September to November), temperatures drop back down to between 0 and 10 degrees Celsius, with plenty of sunny days and occasional showers. Thunder Bay's climate is generally mild, with minimal extreme weather events.

Fast Facts About Thunder Bay, ON

As of 2020, the city population is 107909.

Major Cities Nearby Thunder Bay, ON

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