AQI Forecast by County
Monday, August 20
Mon Tue
El Dorado

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

Hazy conditions are expected this weekend in the Sacramento region due to fires continuing to burn in northern California, plus smoke is being transported from offshore caused by fires burning in the Pacific Northwest. If you see or smell smoke in your area you should stay indoors and avoid outdoor activities. Check the fire page to see the latest PM2.5 readings at monitoring sites in the region and to get local air district information.

Spare The Air Alert This Weekend
A Spare The Air alert is in effect on Saturday and Sunday. In addition to higher ozone in the region, we expect hazy conditions from continuing wildfires.

Drive less to help reduce pollution that contributes to our air quality problem. Check current conditions on this site or via the Sacramento Region Air Quality app before outdoor activities. Take special care of children, older adults, pregnant women and those with heart or lung ailments.

Sacramento Region Ozone Air Quality Forecast updated by noon
Today (Mon, Aug 20)
105 AQI - Unhealthy for Sensitive Groups
Tomorrow (Tue, Aug 21)
95 AQI - Moderate

Yesterday's High Extended AQI Outlook
Sun, Aug 19
126 AQI - Unhealthy for Sensitive Groups
Wed, Aug 22
Unhealthy for Sensitive Groups
Thu, Aug 23
Unhealthy for Sensitive Groups
Fri, Aug 24
Unhealthy for Sensitive Groups

Air Quality Forecast and Weather Discussion
Sunday is a Spare The Air day in the Sacramento region. An upper-level ridge of high pressure over northern California will reduce mixing and produce mostly sunny skies with temperatures in the upper-90s. In addition, wildfire smoke will continue to impact the region. These conditions will enhance ground-level ozone formation, causing ozone levels to be Unhealthy for Sensitive Groups on both days. Monday and Tuesday, warm temperatures and mostly sunny skies will continue to support ozone production. However, an upper-level trough of low pressure over Northern California will increase mixing in the atmosphere and generate slightly stronger winds at the surface, aiding pollutant dispersion. Therefore, ozone levels will be low-Unhealthy for Sensitive Groups on Monday and high-Moderate on Tuesday.