Air Quality Information
for the Sacramento Region
Brought to you by the Sacramento Metropolitan, El Dorado,
Feather River, Placer and Yolo-Solano Air Districts
AQI Forecast by County
Monday, September 26
| Mon | Tue | |
| El Dorado | 93 | 77 |
| Placer | 100 | 80 |
| Sacramento | 84 | 74 |
| Yolo-Solano | 64 | 54 |
Air Quality Map
The map below is a 1-hour snapshot. Click to view all hours recorded since midnight.
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 (Mon, Sept 26)
100 AQI - Moderate
|
Tomorrow (Tue, Sept 27)
80 AQI - Moderate
|
|
 
|
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| Yesterday's High | Extended AQI Outlook | ||
|---|---|---|---|
|
Sun, Sept 25
90 AQI - Moderate
Ozone |
Wed, Sept 28
Moderate
|
Thu, Sept 29
Moderate
|
Fri, Sept 30
Moderate
|
Air Quality Forecast and Weather Discussion
Monday, sunshine and temperatures in the low- to mid-90s will promote ozone formation in the Sacramento region. In addition, light onshore winds will limit dispersion, allowing pollutants to accumulate and gradually be transported into the foothills. However, light winds will confine smoke impacts from the Mosquito Fire to areas near the fire perimeter. Therefore, ozone levels will be high-Moderate, and particle levels will be low-Moderate. Tuesday and Wednesday, atmospheric mixing will increase as a weak upper-level low pressure system approaches and moves into northern California. Additionally, slightly stronger onshore winds will aid dispersion. However, sunny skies and temperatures in the mid- to upper-80s will support ozone formation, and particle levels will remain elevated near the Mosquito Fire perimeter. As a result, ozone levels will be mid-Moderate, and particle levels will be low-Moderate on both days.