Live public data · United States
When is the air better for being outside?
Check current PM2.5 air quality, then compare NOAA's hourly concentration guidance to find the cleaner 3-hour outdoor window over the next 48 hours.
Your location
Outdoor air call
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Hourly model guidance
What the next hours look like
Lower bars mean lower modeled PM2.5 concentration. This is not an AQI forecast.
Agency outlook
AirNow PM2.5 forecast
No agency PM2.5 forecast available for this reporting area.
Fire context
Nearby satellite detections
Loading fire context…
Fire detections can help explain regional context, but do not prove which fire caused smoke at your location.Sources, freshness & what this result means
Built to answer a decision, not redraw a smoke map
Now
Observed AQI stays official
The current PM2.5 AQI and category come from AirNow reporting-area data and are not recalculated or blended into a proprietary AQI.
Next
Hourly guidance finds the window
NOAA/NWS hourly PM2.5 model guidance is compared across contiguous 3-hour periods. Lower modeled concentration wins.
Confidence
Missing data lowers certainty
A missing model, observation, weather feed or optional fire feed is shown as degraded evidence rather than silently replaced with made-up precision.
This is an outdoor-planning tool, not medical advice or an official air-quality warning. When AQI is elevated, use AirNow and your local air agency for official health guidance.