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AQI Forecast by County
Thursday, April 19
Thu Fri
Placer
25
29
Sacramento
42
46
Yolo-Solano
42
50

Air Quality Map
The map below is a 1-hour snapshot. Click to view all hours recorded since midnight.
Current map


2017 Summer Smog Season (May - October)
AQI Forecast based on 2008 federal 8-hour ozone health standard*

* Forecast values displayed are the next-day forecasts for that date, meaning they were issued on the previous day.