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
Wednesday, September 18
| Wed | Thu | |
| El Dorado | 37 | 43 |
| Placer | 36 | 41 |
| Sacramento | 35 | 41 |
| Yolo-Solano | 28 | 33 |
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 (Wed, Sept 18)
37 AQI - Good
|
Tomorrow (Thu, Sept 19)
43 AQI - Good
|
|
 
|
|
| Yesterday's High | Extended AQI Outlook | ||
|---|---|---|---|
|
Tue, Sept 17
42 AQI - Good
Ozone |
Fri, Sept 20
Good
|
Sat, Sept 21
Moderate
|
Sun, Sept 22
Moderate
|
Air Quality Forecast and Weather Discussion
Wednesday and Thursday, an upper-level trough of low pressure will pass through the Sacramento Valley, which will increase atmospheric mixing and dispersion. Additionally, cooler temperatures will inhibit ozone production. These conditions will lead to Good ozone levels on both days. Friday, as an upper-level ridge of high pressure advances toward northern California, mixing in the lower levels of the atmosphere will decrease. Furthermore, sunny skies and warmer temperatures will increase ozone development. However, low pollutant carryover from previous days will allow ozone levels to be high-Good for the region.