AQI Forecast By County
Sunday, December 04
Sun Mon
Placer
68
55
Sacramento
97
59
Yolo-Solano
80
55

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 (PST)

A "!" next to a forecast means a Spare The Air Day has been declared for that day.
 
Forecast: AQI   Pollutant
Sun. December 04, 2016:
 97 
PM2.5    
Mon. December 05, 2016:
 59 
PM2.5    
 
Extended Forecast: Condition Pollutant
Tue. December 06, 2016:
Moderate  Moderate
PM2.5    
Wed. December 07, 2016:
Moderate  Moderate
PM2.5    
Thu. December 08, 2016:
Moderate  Moderate
PM2.5    
Fri. December 09, 2016:   PM2.5    
 
Actual: AQI   Pollutant
Sat. December 03, 2016:
 87 
PM2.5    

Weather Conditions:
Saturday, light and variable winds will reduce dispersion, allowing pollutants to accumulate. In addition, cool evening temperatures will produce a temperature inversion, trapping pollutants near the ground. Therefore, particle levels will be Moderate. Sunday, light southeasterly winds will limit dispersion and gradually transport additional pollutants into the Sacramento region. Furthermore, morning and evening temperature inversions will continue to limit mixing in the lower levels of the atmosphere. These conditions, combined with pollutant carryover from Saturday, will lead to high-Moderate particle levels. Monday, moderate northwesterly winds will develop in the afternoon, aiding pollutant dispersion and lowering particle levels to low-Moderate.