tips

AQI Forecast By County
Thursday, March 23
Thu Fri
Placer
21
21
Sacramento
42
33
Yolo-Solano
29
29

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


Forecast will be issued daily by noon (PST)

A "!" next to a forecast means a Spare The Air Day has been declared for that day.
 
Forecast: AQI   Pollutant
Thu. March 23, 2017:
 42 
PM2.5    
Fri. March 24, 2017:
 33 
PM2.5    
 
Extended Forecast: Condition Pollutant
Sat. March 25, 2017:
Moderate  Moderate
PM2.5    
Sun. March 26, 2017:
Moderate  Moderate
PM2.5    
Mon. March 27, 2017:
Good  Good
PM2.5    
Tue. March 28, 2017:
Good  Good
PM2.5    
 
Actual: AQI   Pollutant
Wed. March 22, 2017:
 36 
Ozone    

Weather Conditions:
Thursday, light and variable winds will inhibit pollutant dispersion in the Sacramento region. However, low pollutant carryover from previous days will yield Good particle levels. Friday, an upper-level trough of low pressure will move over California, enhancing mixing in the atmosphere. In addition, scattered showers and moderate and gusty southerly winds will keep the low levels of the atmosphere well mixed. Therefore, particle levels will remain Good. Saturday, light and variable winds will limit dispersion, resulting in low-Moderate particle levels.