Observed air quality and the smoke outlook for Thornhill, 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: Newtonbrook East, ON smoke forecast (1.9 mi SE) · Newtonbrook West, ON smoke forecast (2.0 mi S) · Bayview Woods-Steeles, ON smoke forecast (2.4 mi SE) · Toronto, ON smoke forecast (7.6 mi S) · Mississauga, ON smoke forecast (20 mi SW) · Hamilton, ON smoke forecast (44 mi SW)