tips
Forecast By County
Friday, October 24
Fri Sat
El Dorado
46
36
Placer
42
35
Sacramento
46
38
Yolo-Solano
38
34

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
Fri. October 24, 2014:
 46 
Ozone    
Sat. October 25, 2014:
 38 
Ozone    
 
Extended Forecast: Condition Pollutant
Sun. October 26, 2014:
Good  Good
Ozone    
Mon. October 27, 2014:
Good  Good
Ozone    
Tue. October 28, 2014:
Good  Good
Ozone    
Wed. October 29, 2014:
Good  Good
Ozone    
 
Actual: AQI   Pollutant
Thu. October 23, 2014:
 34 
Ozone    

Weather Conditions:
Friday, mostly sunny skies will aid ozone production in the Sacramento region, and calm morning winds will limit pollutant dispersion. However, light to moderate southerly winds will develop in the afternoon, helping to disperse pollutants and keeping ozone levels Good. Saturday, a cold front will impact northern California, producing widespread rain showers and gusty southerly winds in the Sacramento area. These weather conditions will inhibit ozone formation and effectively disperse pollutants, yielding Good ozone levels. Sunday, southwesterly winds will shift to northwesterly as the cold front departs the region, keeping pollutants well dispersed. As a result, ozone levels will be Good.