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AQI Forecast by County
Wednesday, October 23
Wed Thu
El Dorado
50
46
Placer
50
46
Sacramento
50
45
Yolo-Solano
44
42

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 (PDT)

A "!" next to a forecast means a Spare The Air Day has been declared for that day.
 
Forecast: AQI   Pollutant
Wed. October 23, 2019:
 50 
PM2.5    
Thu. October 24, 2019:
 45 
Ozone    
 
Extended Forecast: Condition Pollutant
Fri. October 25, 2019:
Moderate  Moderate
Ozone    
Sat. October 26, 2019:
Moderate  Moderate
Ozone    
Sun. October 27, 2019:
Good  Good
Ozone    
Mon. October 28, 2019:   Ozone    
 
Actual: AQI   Pollutant
Tue. October 22, 2019:
 46 
PM2.5    

Weather Conditions:
Tuesday, northwesterly winds will weaken in the Sacramento region, reducing pollutant dispersion. Furthermore, sunshine and temperatures in the mid-80s will support ozone production. These conditions will lead to Moderate ozone levels. Wednesday, light winds through the morning hours will continue to limit mixing and dispersion. However, moderate northwesterly winds will develop in the afternoon, dispersing pollutants and yielding high-Good ozone levels. Thursday, moderate north-northwesterly winds will keep pollutants well dispersed in the Sacramento region, leading to Good ozone levels.