The City of Toronto is once again under an Orange Air Quality warning as Environment Canada says smoke from wildfires in northwestern Ontario continues to linger and blanket the city.
The national weather agency says wildfire smoke will result in very poor air quality through the morning, with only some improvement possible later in the day.
At one point this week, Toronto’s air quality was ranked among the world’s worst, according to IQAir. Today, Toronto is back in the top three, trailing behind U.S. cities like New York and Washington D.C.
Toronto air quality A woman wearing a mask crosses the street in Toronto as wildfire smoke fills the city, on Wednesday, July 15, 2026. THE CANADIAN PRESS/Laura Proctor
Officials warn that “everyone’s health is at risk” during periods of heavy smoke, regardless of age or existing health conditions, and are urging residents to limit the amount of time they spend outdoors.
People most vulnerable include seniors, pregnant people, infants and young children, those with chronic illnesses and people who work outdoors. Environment Canada is asking those individuals to avoid outdoor activity and seek medical attention if symptoms develop.
In addition, officials also say some people may experience eye, nose and throat irritation, headaches or a mild cough, while more serious symptoms can include wheezing, chest pain or a severe cough.
The weather agency is advising sports organizations and outdoor event organizers to consider local air quality conditions when planning activities.
What’s cancelled?
Toronto’s Caribbean Junior Carnival Parade which was set to take place today, has been rescheduled to Sunday, July 19, 2026.
Organizers say the decision was made to due to “inclement weather.”
“The decision has been made with the safety and comfort of the thousands of young participants, their families, volunteers, spectators and event staff as the highest priority,” officials wrote in a statement.
“All event programming will proceed as planned on Sunday, with no changes to the parade route and schedule with only minor changes to some activities to accommodate the date adjustment.”
