AQI Forecast by County
Wednesday, August 12
Wed Thu
El Dorado

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 (Wed, Aug 12)
71 AQI - Moderate
Tomorrow (Thu, Aug 13)
97 AQI - Moderate

Yesterday's High Extended AQI Outlook
Tue, Aug 11
46 AQI - Good
Fri, Aug 14
Unhealthy for Sensitive Groups
Sat, Aug 15
Unhealthy for Sensitive Groups
Sun, Aug 16
Unhealthy for Sensitive Groups

Air Quality Forecast and Weather Discussion
Wednesday and Thursday, upper-level high pressure over the southwest U.S. will build into northern California, reducing vertical mixing and weakening the onshore flow. These conditions, combined with increasing temperatures and sunny skies, will enhance ozone formation. As a result, ozone levels will be mid- to high-Moderate on both days. Friday, continuing light winds, hot temperatures, and carryover pollutants will cause ozone levels to increase into the low-Unhealthy for Sensitive Groups AQI range in the Sacramento region.