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
Sunday, September 22
| Sun | Mon | |
| El Dorado | 61 | 48 |
| Placer | 58 | 48 |
| Sacramento | 51 | 48 |
| Yolo-Solano | 44 | 41 |
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 (Sun, Sept 22)
61 AQI - Moderate
|
Tomorrow (Mon, Sept 23)
48 AQI - Good
|
|
 
|
|
| Yesterday's High | Extended AQI Outlook | ||
|---|---|---|---|
|
Sat, Sept 21
45 AQI - Good
Ozone |
Tue, Sept 24
Moderate
|
Wed, Sept 25
Moderate
|
Thu, Sept 26
Good
|
Air Quality Forecast and Weather Discussion
Sunday, as an upper-level ridge of high pressure moves east of the Sacramento Valley, vertical mixing will remain inhibited. In addition, partly sunny skies and temperatures in the mid- to upper-80s will aid ozone formation, while light onshore winds will allow pollutants to accumulate. These conditions will lead to low-Moderate ozone levels. Monday, an upper-level trough of low pressure will move across the Sierra Nevada mountain range, which will enhance vertical mixing. Furthermore, moderate and gusty northwesterly winds will disperse pollutants. Therefore, despite sunny skies and temperatures near 90F aiding ozone formation, ozone levels will lower to high-Good. Tuesday, an upper-level ridge of high pressure off the California coast will limit mixing and dispersion. Additionally, sunny skies combined with temperatures in the mid-90s will enhance ozone formation. As a result, ozone levels will be Moderate.