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AQI Forecast by County
Saturday, May 25
Sat Sun
El Dorado
39
37
Placer
38
37
Sacramento
37
34
Yolo-Solano
36
32

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
Sat. May 25, 2019:
 37 
Ozone    
Sun. May 26, 2019:
 34 
Ozone    
 
Extended Forecast: Condition Pollutant
Mon. May 27, 2019:
Good  Good
Ozone    
Tue. May 28, 2019:
Good  Good
Ozone    
Wed. May 29, 2019:
Moderate  Moderate
Ozone    
Thu. May 30, 2019:   Ozone    
 
Actual: AQI   Pollutant
Fri. May 24, 2019:
 31 
Ozone    

Weather Conditions:
Friday through Memorial Day, a series of upper-level troughs of low pressure moving over California will aid vertical mixing in the atmosphere. Furthermore, light to moderate onshore winds will aid dispersion, and relatively cool temperatures will limit ozone formation. Therefore, ozone levels will be Good on all three days.