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AQI Forecast by County
Thursday, August 18
Thu Fri
El Dorado
115
108
Placer
115
112
Sacramento
108
105
Yolo-Solano
77
74

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


Do You Know Current Air Pollution Levels?
Check air quality conditions before you go outside. Smog increases throughout the day and it will be the 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.

You may also visit this site's Current Conditions to see the latest hourly air pollution readings.

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 (Thu, Aug 18)
115 AQI - Unhealthy for Sensitive Groups
Tomorrow (Fri, Aug 19)
112 AQI - Unhealthy for Sensitive Groups

Yesterday's High Extended AQI Outlook
Wed, Aug 17
133 AQI - Unhealthy for Sensitive Groups
Ozone
Sat, Aug 20
Moderate
Sun, Aug 21
Moderate
Mon, Aug 22
Moderate

Air Quality Forecast and Weather Discussion
Wednesday through Friday, mostly sunny and hot conditions will persist in the Sacramento region, supporting ozone production. In addition, light onshore winds early each day will continue to limit pollutant dispersion. Furthermore, lingering thin-density smoke from the Six Rivers Complex Fire will enhance ozone formation. However, moderate onshore winds will disperse pollutants each afternoon, and scattered clouds associated with monsoonal moisture will reduce ozone formation slightly on Wednesday. These conditions will cause ozone levels to be Unhealthy for Sensitive Groups on all three days.