Check Environment & Climate Change Canada website for information on your local forecast and weather alerts or download the WeatherCAN mobile app.


Cold weather can put your health at risk and worsen pre-existing conditions, such as cardiovascular and respiratory disease. Cold-related injuries and illnesses include frostnip, frostbite and hypothermia.

The risk of cold-related injuries and illnesses depends on several factors, such as the current weather conditions (temperature, wind and precipitation) and how long someone has been in the cold. While anyone who isn’t dressed warmly is at risk in cold weather, some individuals, such as older adults, infants (less than twelve months old), those experiencing homelessness or those living in a home without adequate heat or electricity are at greater risk.

Stay Warm

Tips and advice to stay safe during the winter.

Cold-Related Injuries & Illnesses

Spot signs and symptoms.

People At Risk of Cold Related Illness

More information about those most at risk of cold-related illness.

Toronto’s Cold Weather Response Plan

Reducing negative health impacts of cold weather conditions.

Extreme Cold Weather

What it means and how to sign up for alerts from Environment and Climate Change Canada.

Cold Weather Plans for Groups & Organizations

Developing a plan to keep people safe in cold weather.