AQI Forecast By County
Sunday, July 24
Sun Mon
El Dorado
101
97
Placer
112
101
Sacramento
108
100
Yolo-Solano
50
50

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
Sun. July 24, 2016:
 108 
Ozone    
Mon. July 25, 2016:
 100 
Ozone    
 
Extended Forecast: Condition Pollutant
Tue. July 26, 2016:
Unhealthy for Sensitive Groups  Unhealthy for Sensitive Groups
Ozone    
Wed. July 27, 2016:
Unhealthy for Sensitive Groups  Unhealthy for Sensitive Groups
Ozone    
Thu. July 28, 2016:
Unhealthy for Sensitive Groups  Unhealthy for Sensitive Groups
Ozone    
Fri. July 29, 2016:
Moderate  Moderate
Ozone    
 
Actual: AQI   Pollutant
Sat. July 23, 2016:
 58 
Ozone    

Weather Conditions:
Sunday and Monday, a weak upper-level trough of low pressure will impact the Sacramento region, enhancing mixing in the atmosphere and increasing onshore winds at the surface. However, sunny and hot conditions will support ozone formation. As a result, ozone levels will be Unhealthy for Sensitive Groups on both days. Tuesday, light southwesterly winds will inhibit pollutant dispersion, and temperatures near 105F will enhance ozone formation. In addition, an upper-level ridge of high pressure will limit vertical mixing. These conditions will keep ozone levels Unhealthy for Sensitive Groups.