Wildfires in Ontario Today
Live active-fire map for Ontario from NASA FIRMS satellite data. Where fires are burning right now — updated hourly. Typical fire season: May–August.
8 km/h from the S — carrying smoke towards the N.
17°C · 43% humidity
Air quality Fair
PM2.5 1.5 µg/m³ this hour · EU AQI 25 · US AQI 27
Air quality is acceptable for almost everyone.
Wind direction only — not a smoke dispersion forecast. Air quality is modelled, not a street-level measurement. Weather from MET Norway; air quality from Open-Meteo (Copernicus CAMS). Both CC BY 4.0.
3 active fires in Ontario
Neighbouring detections grouped into single incidents, largest first.
- 162 MW18 km NE of Sudbury, Ontario9 detectionslast seen 2026-09-19 07:46 UTC46.576, -80.793
- 228 MW54 km SW of Toronto, Ontario13 detections~2 km acrosslast seen 2026-09-19 07:46 UTC43.271, -79.803
- 34 MW27 km SW of Toronto, Ontario5 detectionslast seen 2026-09-19 07:46 UTC43.491, -79.626
Plus 8 smaller heat detections — often agricultural burning rather than wildfire.
About this wildfire map
This map uses NASA's Fire Information for Resource Management System (FIRMS), which publishes active-fire detections from the VIIRS and MODIS instruments aboard NASA and NOAA satellites. Each dot is a thermal “hotspot” where the sensor measured fire-level heat, usually within 3 hours of the satellite passing overhead. It shows where fires are actively burning — not fire perimeters or evacuation zones. For safety and evacuation information, always follow your local emergency services.