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AQI Forecast by County
Saturday, August 17
Sat Sun
El Dorado
54
49
Placer
58
50
Sacramento
51
48
Yolo-Solano
46
44

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. August 17, 2019:
 51 
Ozone    
Sun. August 18, 2019:
 48 
Ozone    
 
Extended Forecast: Condition Pollutant
Mon. August 19, 2019:
Good  Good
Ozone    
Tue. August 20, 2019:
Moderate  Moderate
Ozone    
Wed. August 21, 2019:
Moderate  Moderate
Ozone    
Thu. August 22, 2019:   Ozone    
 
Actual: AQI   Pollutant
Fri. August 16, 2019:
 112 
Ozone    

Weather Conditions:
Friday, winds will shift to onshore and increase in the evening. However, light winds during the day will limit dispersion, and triple digit temperatures along with sunny skies will enhance ozone formation. As a result, ozone levels will be Unhealthy for Sensitive Groups in the Sacramento region. Saturday and Sunday, an approaching upper-level trough of low pressure will enhance mixing in the atmosphere. Additionally, moderate onshore winds will disperse pollutants, and cooler temperatures will hinder ozone development. Thus, ozone levels will be low-Moderate on Saturday and high-Good on Sunday.