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Current map

AQI Forecast By County
Friday, September 04
Fri Sat
El Dorado
46
49
Placer
44
47
Sacramento
45
47
Yolo-Solano
36
38


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
Fri. September 04, 2015:
 45 
Ozone    
Sat. September 05, 2015:
 47 
Ozone    
 
Extended Forecast: Condition Pollutant
Sun. September 06, 2015:
Good  Good
Ozone    
Mon. September 07, 2015:
Moderate  Moderate
Ozone    
Tue. September 08, 2015:
Moderate  Moderate
Ozone    
Wed. September 09, 2015:   Ozone    
 
Actual: AQI   Pollutant
Thu. September 03, 2015:
 52 
PM2.5    

Weather Conditions:
Thursday and Friday, an upper-level trough of low pressure will enhance atmospheric mixing and produce moderate southwesterly winds in the Sacramento region. Therefore, ozone levels will be Good on both days. Saturday, light to moderate winds will shift to the northwest as the upper-level trough passes to the north, continuing to disperse pollutants. As a result, ozone levels will remain Good.