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.
9 km/h from the S — carrying smoke towards the N.
23°C · 86% humidity
Air quality Fair
PM2.5 3.5 µg/m³ this hour · EU AQI 36 · 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.
8 active fires in Ontario
Neighbouring detections grouped into single incidents, largest first.
- 153 MW111 km SW of Toronto, Canada18 detections~2.3 km acrosslast seen 2026-08-05 08:30 UTC42.806, -80.099
- 249 MWRemote area5 detectionslast seen 2026-08-04 18:36 UTC55.959, -75.270
- 335 MW55 km SW of Toronto, Canada13 detections~2.4 km acrosslast seen 2026-08-05 08:30 UTC43.267, -79.805
- 428 MWRemote area21 detections~7.1 km acrosslast seen 2026-08-05 08:28 UTC51.315, -83.514
- 518 MWRemote area17 detections~2.5 km acrosslast seen 2026-08-05 08:28 UTC52.284, -82.255
- 618 MWRemote area23 detections~19.5 km acrosslast seen 2026-08-05 08:28 UTC54.389, -89.990
- 75 MWRemote area4 detections~8.3 km acrosslast seen 2026-08-05 06:48 UTC50.280, -78.687
- 85 MW63 km SW of Toronto, Canada3 detectionslast seen 2026-08-05 08:30 UTC43.293, -79.985
Plus 20 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.