tips

AQI Forecast by County
Friday, May 24
Fri Sat
El Dorado
39
39
Placer
38
38
Sacramento
38
37
Yolo-Solano
36
36

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


Are You Ready for Summer Air Pollution?
The Sacramento region's Spare The Air season is underway. Ground-level ozone (also known as smog) is a summer air pollution problem and most of it is caused by mobile sources.

Make a plan to reduce driving when we issue a Spare The Air alert.

Check air quality conditions before you go outside. Smog levels increases throughout the day and will be their highest in late-afternoon or early evening.

Download the free Sacramento Region Air Quality app today. You'll get air pollution readings from monitors throughout the region, the daily forecast, plus Spare The Air alerts.

A Spare The Air alert in the Sacramento region will be issued when the AQI for ground-level ozone pollution is forecast to reach 126 or above.

Sacramento Region Ozone Air Quality Forecast updated by noon
Today (Fri, May 24)
39 AQI - Good
Tomorrow (Sat, May 25)
39 AQI - Good

Yesterday's High Extended AQI Outlook
Thu, May 23
40 AQI - Good
Ozone
Sun, May 26
Good
Mon, May 27
Good
Tue, May 28
Good

Air Quality Forecast and Weather Discussion
Friday through Memorial Day, a series of upper-level troughs of low pressure moving over California will aid vertical mixing in the atmosphere. Furthermore, light to moderate onshore winds will aid dispersion, and relatively cool temperatures will limit ozone formation. Therefore, ozone levels will be Good on all three days.