Observed air quality and the smoke outlook for St. Thomas, 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: Aylmer, ON smoke forecast (10 mi E) · London, ON smoke forecast (15 mi N) · Dorchester, ON smoke forecast (16 mi N) · Ingersoll, ON smoke forecast (23 mi NE) · Kitchener, ON smoke forecast (56 mi NE) · Hamilton, ON smoke forecast (75 mi NE)