Air quality in Buffalo and the wider Western New York corridor has been upgraded to “Very Unhealthy” — the fourth-worst tier on the federal Air Quality Index — as smoke from out-of-control wildfires in northwestern Ontario sank to the surface overnight, pushing the AQI above 255 for fine particulate matter across Erie, Niagara, Cattaraugus, Chautauqua, Genesee, Orleans, and Wyoming counties. The New York State Department of Environmental Conservation and the State Department of Health issued the upgraded advisory for Thursday, July 16, 2026, in effect from 10 a.m. until 11:59 p.m. ET. On the Ontario side of the Niagara border, the situation is identical: Environment Canada maintained an orange-level air quality warning for southern Ontario throughout the day, with the Air Quality Health Index registering at 10 or above — its highest category — across Hamilton, Niagara, and the Greater Toronto Area. Travelers with plans anywhere in the Buffalo-to-Hamilton corridor today have no clean outdoor fallback on either side of the border.
Outdoor Activities Cancelled on Both Sides of the Niagara Border
Erie County Executive Mark Poloncarz ordered all county employees who normally work outside to stop work and return to their indoor worksites for the remainder of Thursday. The Town of West Seneca cancelled all outdoor activities for the day, including Veterans Pool. Across the Peace Bridge in Fort Erie, Ontario, the town announced closures that affect some of the Niagara waterfront’s most popular summer destinations: Bay Beach is closed for the day, splash pads are shut, the Tennis Club is closed, and all recreation programs have been cancelled. The evening Supper Market — a draw for both local residents and American visitors crossing from Buffalo — was also cancelled. The Town of Fort Erie said Bay Beach day-pass holders will be able to use their passes on another day of their choosing, according to the town’s official notice on the closures.
St. Catharines, one of the largest cities in the Niagara Region, closed outdoor pools and sports fields and cancelled outdoor events for Thursday as well. The sweep of simultaneous closures on both sides of the border means travelers who planned a day around the Niagara corridor — the Falls themselves, the waterfront in Fort Erie, outdoor markets, evening entertainment — are looking at an afternoon and evening with no safe outdoor alternative within walking distance of the most common tourist itineraries.
Is It Safe to Go Outside in Buffalo and Niagara Today?
The short answer, according to every health official who has weighed in today, is no — not for more than brief, unavoidable trips. An AQI above 200 signals that air pollution has reached a level at which everyone, not just people with existing health conditions, may begin experiencing serious health effects. The AQI in Western New York is expected to exceed 255, according to NYSDEC and local monitoring reported by WGRZ in Buffalo.
The reason the smoke has become this intense today specifically is a weather pattern shift. Earlier in the week, smoke from Ontario’s wildfires was traveling high in the atmosphere, where it reduced visibility and produced hazy skies but had limited ground-level impact. Beginning Wednesday evening, the smoke plume sank to the surface — the result of a change in atmospheric circulation — where it directly enters the air people breathe. The fires driving the smoke are burning out of control in northwestern Ontario; evacuation orders remain in place for the communities of Armstrong and Whitesand due to advancing wildfires, and the smoke has…