Weather Forecast and Radar for Cornwall, Ontario

Weather in Cornwall, ON

Cornwall, Ontario experiences a wide range of weather throughout the year, with temperatures ranging from an average low of -10°C in January to an average high of 25°C in July. The spring season brings plenty of rain, with the months of April and May bringing an average monthly rainfall of 60mm and 80mm respectively. Summers are generally warm and sunny, with temperatures peaking during the months of July and August. Autumn brings cooler temperatures and generally mild weather, with an average of 10°C in October and 4°C in November. Winter months bring snowfall and cold temperatures, with an average low of -10°C in January and an average high of 2°C in February.

Fast Facts About Cornwall, ON

As of 2020, the city population is 46589.

Major Cities Nearby Cornwall, ON

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