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AQI Forecast by County
Sunday, September 22
Sun Mon
El Dorado
61
48
Placer
58
48
Sacramento
51
48
Yolo-Solano
44
41

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


2019 Summer Smog Season (May - October)
AQI Forecast based on 2008 federal 8-hour ozone health standard*

May Region Yolo-Solano Sacramento Placer El Dorado
Wed. 5/1 67 54 67 61 67
Thu. 5/2 67 54 67 67 67
Fri. 5/3 87 74 87 87 84
Sat. 5/4 61 61 61 74 58
Sun. 5/5 50 50 50 46 49
Mon. 5/6 51 51 51 51 51
Tue. 5/7 58 51 58 58 61
Wed. 5/8 71 51 71 74 74
Thu. 5/9 51 44 51 54 51
Fri. 5/10 58 44 58 58 54
Sat. 5/11 54 43 54 61 58
Sun. 5/12 61 51 61 71 61
Mon. 5/13 61 50 61 77 54
Tue. 5/14 50 46 50 58 51
Wed. 5/15 43 42 43 45 44
Thu. 5/16 39 37 39 40 40
Fri. 5/17 48 46 48 50 49
Sat. 5/18 42 42 42 42 41
Sun. 5/19 44 37 38 41 40
Mon. 5/20 45 43 45 47 46
Tue. 5/21 44 41 44 44 44
Wed. 5/22 50 45 50 49 48
Thu. 5/23 51 49 51 58 51
Fri. 5/24 42 37 42 43 44
Sat. 5/25 37 36 37 38 39
Sun. 5/26 36 32 36 37 37
Mon. 5/27 44 43 44 46 46
Tue. 5/28 49 43 49 50 50
Wed. 5/29 64 49 64 74 67
Thu. 5/30 48 45 48 54 51
Fri. 5/31 67 51 67 84 77
June Region Yolo-Solano Sacramento Placer El Dorado
Sat. 6/1 80 42 80 84 87
Sun. 6/2 51 61 51 61 61
Mon. 6/3 97 61 97 100 100
Tue. 6/4 105 77 105 105 108
Wed. 6/5 108 77 108 115 115
Thu. 6/6 71 50 71 93 93
Fri. 6/7 47 44 47 49 49
Sat. 6/8 49 46 49 48 47
Sun. 6/9 58 51 58 61 58
Mon. 6/10 77 74 77 84 80
Tue. 6/11 115 67 115 126 126
Wed. 6/12 126 80 126 136 133
Thu. 6/13 100 77 100 108 105
Fri. 6/14 87 67 87 97 93
Sat. 6/15 64 49 64 77 74
Sun. 6/16 87 67 87 93 93
Mon. 6/17 105 87 105 112 112
Tue. 6/18 105 71 105 108 112
Wed. 6/19 105 74 105 108 108
Thu. 6/20 67 50 67 77 74
Fri. 6/21 48 44 48 49 49
Sat. 6/22 49 46 49 50 50
Sun. 6/23 101 67 101 105 105
Mon. 6/24 108 84 108 112 115
Tue. 6/25 67 51 67 74 77
Wed. 6/26 50 48 50 58 58
Thu. 6/27 46 44 46 48 48
Fri. 6/28 50 48 50 51 54
Sat. 6/29 51 49 51 58 61
Sun. 6/30 67 51 67 74 74
July Region Yolo-Solano Sacramento Placer El Dorado
Mon. 7/1 93 58 93 93 87
Tue. 7/2 84 54 84 84 84
Wed. 7/3 64 49 64 71 74
Thu. 7/4 74 50 74 77 67
Fri. 7/5 100 74 100 101 108
Sat. 7/6 101 74 101 105 112
Sun. 7/7 64 47 64 67 71
Mon. 7/8 51 45 51 54 61

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