Canada's 2026 fire season started more quietly than the 2023 and 2025 seasons, which were the worst in Canadian history, but by mid-July, conditions had changed dramatically. Hundreds of active wildfires were burning across the country, wildfire smoke was blanketing major cities, and officials warned that hot, dry conditions could keep the threat elevated for weeks. One remarkable feature of Canadian wildfires is how far their wildfire smoke can travel. Tiny particles known as PM2.5, or particulate matter, can remain suspended in the atmosphere for days and travel hundreds or even thousands of miles. That means people living far from any visible fire may still experience hazardous air quality. Federal officials say forecasts continue to point toward warmer-than-average weather through much of the summer, meaning fire risk could remain elevated even where recent precipitation has temporarily reduced danger. Residents are encouraged to follow updates from their local fire management agencies, monitor evacuation notices and pay close attention to air quality forecasts throughout the remainder of the 2026 wildfire season, which ends in October.
