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AQI Forecast by County
Thursday, August 11
Thu Fri
El Dorado
71
80
Placer
77
84
Sacramento
67
74
Yolo-Solano
47
49

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 11)
77 AQI - Moderate
Tomorrow (Fri, Aug 12)
84 AQI - Moderate

Yesterday's High Extended AQI Outlook
Wed, Aug 10
44 AQI - Good
Ozone
Sat, Aug 13
Moderate
Sun, Aug 14
Moderate
Mon, Aug 15
Moderate

Air Quality Forecast and Weather Discussion
Wednesday, a lingering upper-level low pressure system just offshore of northern California will continue to aid atmospheric mixing. In addition, moderate onshore winds will enhance dispersion, keeping ozone levels high-Good around the Sacramento region. Thursday and Friday, as the low pressure system departs to the north, atmospheric mixing will decrease, and temperatures will increase slightly across the Sacramento region. These conditions will enhance ground-level ozone formation. However, a light to moderate delta breeze will develop each afternoon, aiding pollutant dispersion. As a result, ozone levels will be Moderate on both days.