tips

AQI Forecast by County
Thursday, October 28
Thu Fri
El Dorado
46
53
Placer
46
61
Sacramento
53
66
Yolo-Solano
42
59

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


2021 Summer Smog Season (May - October)
AQI Forecast based on 2008 federal 8-hour ozone health standard*

May Region Yolo-Solano Sacramento Placer El Dorado
Sat. 5/1 44 39 44 42 43
Sun. 5/2 44 39 44 42 43
Mon. 5/3 41 40 41 39 39
Tue. 5/4 49 43 49 46 47
Wed. 5/5 84 51 84 93 67
Thu. 5/6 47 42 47 51 51
Fri. 5/7 45 43 45 43 43
Sat. 5/8 47 44 47 46 49
Sun. 5/9 50 45 50 48 49
Mon. 5/10 48 44 48 48 47
Tue. 5/11 64 48 64 67 61
Wed. 5/12 84 58 84 90 90
Thu. 5/13 90 51 90 100 100
Fri. 5/14 51 43 51 67 64
Sat. 5/15 47 43 47 49 49
Sun. 5/16 43 38 43 45 45
Mon. 5/17 48 44 48 51 51
Tue. 5/18 54 47 54 64 64
Wed. 5/19 46 42 46 49 48
Thu. 5/20 40 36 40 38 39
Fri. 5/21 43 38 43 43 44
Sat. 5/22 47 44 47 49 48
Sun. 5/23 61 48 61 67 61
Mon. 5/24 67 46 67 74 71
Tue. 5/25 48 44 48 46 47
Wed. 5/26 51 47 51 61 61
Thu. 5/27 54 44 54 64 61
Fri. 5/28 74 54 74 84 84
Sat. 5/29 84 50 84 100 90
Sun. 5/30 119 90 119 115 108
Mon. 5/31 101 101 101 90 93
June Region Yolo-Solano Sacramento Placer El Dorado
Tue. 6/1 67 44 67 108 93
Wed. 6/2 101 54 101 108 101
Thu. 6/3 100 54 100 105 100
Fri. 6/4 87 48 87 100 90
Sat. 6/5 71 46 71 87 80
Sun. 6/6 67 44 67 77 67
Mon. 6/7 49 41 49 50 48
Tue. 6/8 45 40 45 48 45
Wed. 6/9 44 40 44 44 43
Thu. 6/10 51 44 51 54 51
Fri. 6/11 61 47 61 77 71
Sat. 6/12 49 42 49 50 51
Sun. 6/13 47 40 47 49 50
Mon. 6/14 42 37 42 44 44
Tue. 6/15 50 40 50 48 46
Wed. 6/16 74 51 74 67 74
Thu. 6/17 101 61 101 93 101
Fri. 6/18 126 77 126 129 126
Sat. 6/19 101 67 101 129 126
Sun. 6/20 84 51 84 101 93
Mon. 6/21 58 45 58 80 71
Tue. 6/22 51 44 51 61 54
Wed. 6/23 44 35 44 47 46
Thu. 6/24 48 40 48 50 49
Fri. 6/25 80 47 80 90 80
Sat. 6/26 100 67 100 100 100
Sun. 6/27 90 48 90 101 100
Mon. 6/28 87 48 87 93 90
Tue. 6/29 101 61 101 112 101
Wed. 6/30 50 42 50 80 58
July Region Yolo-Solano Sacramento Placer El Dorado
Thu. 7/1 50 42 50 67 64
Fri. 7/2 54 44 54 71 67
Sat. 7/3 50 38 50 80 67
Sun. 7/4 64 43 64 87 71
Mon. 7/5 67 46 67 90 74
Tue. 7/6 54 44 54 77 64
Wed. 7/7 71 43 71 80 77
Thu. 7/8 115 90 115 115 108
Fri. 7/9 126 93 126 129 126
Sat. 7/10 133 61 133 126 133
Sun. 7/11 100 46 100 101 101
Mon. 7/12 74 42 74 84 80
Tue. 7/13 58 37 58 67 64
Wed. 7/14 54 39 54 77 77
Thu. 7/15 50 35 50 74 67
Fri. 7/16 77 47 77 97 80
Sat. 7/17 90 51 90 101 84
Sun. 7/18 90 49 90 115 108
Mon. 7/19 54 44 54 80 67
Tue. 7/20 64 45 64 84 80
Wed. 7/21 84 48 84 93 84
Thu. 7/22 51 44 51 71 54
Fri. 7/23 126 67 126 136 126
Sat. 7/24 108 61 108 133 126
Sun. 7/25 101 64 101 115 112
Mon. 7/26 71 47 71 87 84
Tue. 7/27 61 47 61 77 74
Wed. 7/28 93 48 93 105 101
Thu. 7/29 101 51 101 108 105
Fri. 7/30 105 47 105 119 119
Sat. 7/31 51 40 51 77 74
August Region Yolo-Solano Sacramento Placer El Dorado
Sun. 8/1 51 37 51 67 64
Mon. 8/2 100 67 100 101 101
Tue. 8/3 108 67 108 122 119
Wed. 8/4 61 49 61 100 90
Thu. 8/5 50 44 50 77 67
Fri. 8/6 112 93 112 115 115
Sat. 8/7 101 67 101 108 105
Sun. 8/8 51 46 51 67 61
Mon. 8/9 77 44 77 101 93
Tue. 8/10 101 58 101 115 108
Wed. 8/11 122 77 122 126 126
Thu. 8/12 108 67 108 115 115
Fri. 8/13 101 54 101 101 101
Sat. 8/14 61 44 61 77 77
Sun. 8/15 51 37 51 67 67
Mon. 8/16 77 49 77 93 93
Tue. 8/17 54 47 54 80 80
Wed. 8/18 51 42 51 84 67
Thu. 8/19 61 46 61 77 77
Fri. 8/20 50 44 50 74 74
Sat. 8/21 46 41 46 49 47
Sun. 8/22 49 42 49 54 54
Mon. 8/23 50 44 50 61 61
Tue. 8/24 49 43 49 77 71
Wed. 8/25 77 44 77 105 101
Thu. 8/26 90 67 90 100 100
Fri. 8/27 101 61 101 115 115
Sat. 8/28 119 105 119 122 122
Sun. 8/29 115 84 115 115 115
Mon. 8/30 101 71 101 112 112
Tue. 8/31 90 58 90 101 101
September Region Yolo-Solano Sacramento Placer El Dorado
Wed. 9/1 74 47 74 93 93
Thu. 9/2 77 48 77 97 97
Fri. 9/3 101 67 101 115 115
Sat. 9/4 105 77 105 108 100
Sun. 9/5 122 90 122 122 100
Mon. 9/6 119 101 119 122 101
Tue. 9/7 105 90 105 108 101
Wed. 9/8 100 87 100 97 97
Thu. 9/9 93 71 93 101 90
Fri. 9/10 67 46 67 77 80
Sat. 9/11 100 54 100 90 84
Sun. 9/12 115 61 115 108 93
Mon. 9/13 122 101 122 122 115
Tue. 9/14 133 101 133 133 133
Wed. 9/15 61 51 61 84 74
Thu. 9/16 49 35 49 61 58
Fri. 9/17 54 42 54 77 67
Sat. 9/18 44 31 44 49 48
Sun. 9/19 45 37 45 44 44
Mon. 9/20 71 46 71 67 67
Tue. 9/21 101 71 101 105 101
Wed. 9/22 84 49 84 100 100
Thu. 9/23 87 50 87 87 84
Fri. 9/24 119 71 119 122 115
Sat. 9/25 80 48 80 100 97
Sun. 9/26 64 46 64 74 71
Mon. 9/27 49 42 49 50 50
Tue. 9/28 39 32 39 37 38
Wed. 9/29 50 44 50 50 50
Thu. 9/30 51 44 51 49 48
October Region Yolo-Solano Sacramento Placer El Dorado
Fri. 10/1 51 45 51 51 50
Sat. 10/2 105 51 105 105 101
Sun. 10/3 122 108 122 122 115
Mon. 10/4 105 80 105 101 93
Tue. 10/5 49 44 49 51 51
Wed. 10/6 38 34 38 42 42
Thu. 10/7 37 32 37 40 38
Fri. 10/8 35 29 35 38 37
Sat. 10/9 43 36 43 42 41
Sun. 10/10 49 42 49 49 48
Mon. 10/11 40 33 40 38 39
Tue. 10/12 41 34 41 42 39
Wed. 10/13 43 41 43 42 42
Thu. 10/14 40 36 40 37 37
Fri. 10/15 50 42 50 49 47
Sat. 10/16 54 47 54 54 51
Sun. 10/17 41 31 41 44 43
Mon. 10/18 41 34 41 41 41
Tue. 10/19 40 33 40 42 41
Wed. 10/20 35 29 35 35 35
Thu. 10/21 38 32 38 38 35
Fri. 10/22 35 32 35 36 34
Sat. 10/23 32 33 32 31 31
Sun. 10/24 27 27 27 26 25
Mon. 10/25 33 29 33 31 31
Tue. 10/26 35 32 35 34 32
Wed. 10/27 36 29 36 35 34
Thu. 10/28 41 33 41 41 40

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