Observed air quality and the smoke outlook for St. Marys, ON: when smoke arrives, how bad it gets, when it clears — with the fires nearby and a live local map. Forecasts from NOAA, NASA, and ECCC models, checked hourly against real monitors and satellites.
Nearby: Stratford, ON smoke forecast (12 mi NE) · Lucan, ON smoke forecast (14 mi W) · Thamesford, ON smoke forecast (15 mi SE) · Tavistock, ON smoke forecast (16 mi E) · London, ON smoke forecast (19 mi S) · Toronto, ON smoke forecast (92 mi E)