An Orange Air Quality Warning is in effect for Aurora, Ontario, as thick wildfire smoke from northwestern Ontario pushes into the region on July 16, 2026. Environment Canada and the Province of Ontario warn that very poor air quality is expected to last through Friday morning, and they urge everyone to take precautions.
More than 100 active fires burning in northwestern Ontario are sending dense smoke south, causing widespread haze and reduced visibility across southern Ontario. On Wednesday, Toronto was briefly ranked the world’s most polluted major city by IQAir, with an Air Quality Health Index reading of 10-plus, which signals very high risk. Aurora faced similar smoky skies, with conditions expected to stay in the high-risk category until Friday.
Current readings from The Weather Network show temperatures around 23 to 26 degrees Celsius in Aurora, with northwest winds at 10 km/h and humidity at 69 percent. The smoke is not just uncomfortable—it poses a real health threat. During heavy smoke, everyone’s health can suffer, not only those with existing conditions.
People most likely to be affected include those aged 65 and older, pregnant individuals, infants and young children, people with chronic illnesses, and outdoor workers. Health officials recommend staying indoors as much as possible, keeping windows closed, and using air filters if available. They also ask residents to check on elderly neighbours and others who may need help.
Relief is on the horizon. Environment Canada expects wind patterns to shift by Friday, which should gradually clear the smoke and improve air quality. Until then, residents are advised to avoid strenuous outdoor activities and seek medical care if they experience symptoms like coughing, throat irritation, or difficulty breathing.
