tips
Forecast By County
Wednesday, October 22
Wed Thu
El Dorado
49
42
Placer
48
41
Sacramento
50
42
Yolo-Solano
41
36

The map below is a 1-hour snapshot. Click to view all hours recorded since midnight.
Current map

Spare The Air Days
2014
Spare The Air Days:
4

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
Wed. October 22, 2014:
 50 
Ozone    
Thu. October 23, 2014:
 42 
Ozone    
 
Extended Forecast: Condition Pollutant
Fri. October 24, 2014:
Good  Good
Ozone    
Sat. October 25, 2014:
Good  Good
Ozone    
Sun. October 26, 2014:
Good  Good
Ozone    
Mon. October 27, 2014:
Good  Good
Ozone    
 
Actual: AQI   Pollutant
Tue. October 21, 2014:
 43 
PM2.5    

Weather Conditions:
Wednesday, mostly sunny skies will support ozone formation in the Sacramento region, and light winds will limit pollutant dispersion. However, low pollutant carryover from previous days will lead to Good ozone levels. Thursday, as a weak cold front moves into northern California, increasing clouds will reduce ozone formation in the Sacramento region. Therefore, despite light winds limiting pollutant dispersion, ozone levels will continue to be Good. Friday, partly to mostly sunny skies will aid ozone production, and calm morning winds will limit dispersion. However, light to moderate southerly winds will help to disperse pollutants in the afternoon, keeping ozone levels Good.