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AQI Forecast by County
Thursday, May 25
Thu Fri
El Dorado
49
50
Placer
51
51
Sacramento
46
47
Yolo-Solano
42
42

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


2017 Summer Smog Season (May - October)
AQI Forecast based on 2008 federal 8-hour ozone health standard*

May Region Yolo-Solano Sacramento Placer El Dorado
Mon. 5/1 50 48 50 49 48
Tue. 5/2 50 48 50 49 48
Wed. 5/3 97 61 97 80 80
Thu. 5/4 100 67 100 84 87
Fri. 5/5 51 48 51 61 67
Sat. 5/6 46 43 46 48 48
Sun. 5/7 50 48 50 50 46
Mon. 5/8 64 51 64 54 49
Tue. 5/9 84 67 84 74 58
Wed. 5/10 51 49 51 51 51
Thu. 5/11 50 46 50 50 48
Fri. 5/12 43 41 43 43 49
Sat. 5/13 47 48 47 46 44
Sun. 5/14 50 44 50 49 49
Mon. 5/15 50 47 50 50 50
Tue. 5/16 42 38 42 40 39
Wed. 5/17 49 46 49 46 44
Thu. 5/18 54 51 54 54 54
Fri. 5/19 80 64 80 90 80
Sat. 5/20 100 84 100 100 97
Sun. 5/21 105 80 105 101 101
Mon. 5/22 119 84 119 115 115
Tue. 5/23 119 93 119 122 122
Wed. 5/24 97 58 97 101 101
Thu. 5/25 51 49 51 54 54

* Forecast values displayed are the next-day forecasts for that date, meaning they were issued on the previous day.