Aurora Air Quality & Smoke
National Weather Service advisories for Aurora — ozone action days, wildfire smoke, dust and red flag warnings for forecast zone COZ040.
Right now
No air-quality advisories active
The National Weather Service has issued no ozone, smoke, dust or related advisories for Aurora’s forecast zone. Sensitive groups can still check AirNow for the live AQI reading.
Reading Aurora’s air
What is an Ozone Action Day?+
Denver’s metro area — including Aurora — violates federal ozone standards most summers. On action days, ground-level ozone is expected to reach unhealthy levels; residents are asked to limit driving, refuel after dusk and reduce outdoor exertion.
Where does the smoke come from?+
Colorado wildfires and — increasingly — out-of-state fires in the Pacific Northwest and Canada. Smoke arrives aloft or at ground level; a Dense Smoke Advisory means visibility and breathing are both affected.
Is there a live AQI number here?+
This page shows official NWS advisories, refreshed every 10 minutes. For the continuous Air Quality Index value, use AirNow.gov (the federal monitor reading) linked in the sidebar.
What is a Red Flag Warning?+
A fire-weather alert — low humidity plus wind, meaning any spark can spread fast. Aurora’s eastern prairie edge is exactly where these matter; they usually accompany smoke risk.