Stay updated with real-time air quality in Yucaipa, California featuring accurate data on AQI, PM2.5, PM10, O3, NO2, SO2, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.
Live AQI (Air Quality Index)
133
Unhealthy for sensitive groups
Yucaipa, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.37 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
35.05 μg/m³
0
55
155
255
425
605+
79.72 ppb
0
55
71
86
201
201+
0.70 ppb
0
36
76
186
605
1005+
5.05 ppb
0
54
101
361
1250
2050+
0.25 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Yucaipa, California
Yucaipa, California
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AQI 126
Unhealthy for sensitive groups
8.19μg/m³
PM2.5
34.43μg/m³
PM10
78.49ppb
O3
0.70ppb
SO2
4.89ppb
NO2
0.25ppm
CO
AQI 77
Moderate
6.43μg/m³
PM2.5
28.84μg/m³
PM10
63.42ppb
O3
0.72ppb
SO2
3.21ppb
NO2
0.26ppm
CO
AQI 156
Unhealthy
9.87μg/m³
PM2.5
40.71μg/m³
PM10
87.74ppb
O3
0.69ppb
SO2
6.07ppb
NO2
0.25ppm
CO
AQI 143
Unhealthy for sensitive groups
10.76μg/m³
PM2.5
47.11μg/m³
PM10
83.32ppb
O3
0.69ppb
SO2
6.87ppb
NO2
0.25ppm
CO
AQI 80
Moderate
4.38μg/m³
PM2.5
18.82μg/m³
PM10
64.47ppb
O3
0.72ppb
SO2
2.39ppb
NO2
0.26ppm
CO
AQI 133
Unhealthy for sensitive groups
14.15μg/m³
PM2.5
66.55μg/m³
PM10
79.96ppb
O3
0.67ppb
SO2
5.88ppb
NO2
0.25ppm
CO
Air quality data and pollutant measurements for California, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Yucaipa, California is updated every hour.
The worst air quality in Yucaipa, California in the last 24 hours was observed at 09:00:00 on 2026-07-23.
In the last 24 hrs, the best air quality in Yucaipa, California was observed at 02:00:00 on 2026-07-23.
The current air quality in Yucaipa, California is 133, categorized as Unhealthy for Sensitive Groups based on real-time data.
The most common pollutant in Yucaipa, California is O3.
If the air quality in Yucaipa, California is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Yucaipa, California is 8.365 μg/m3.
The current PM10 concentration at Yucaipa, California is 35.045 μg/m3.
The current carbon monoxide (CO) concentration at Yucaipa, California is 0.253 ppm.
The current sulfur dioxide (SO2) concentration at Yucaipa, California is 0.7 ppb.
The current ozone (O3) concentration at Yucaipa, California is 79.718 ppm.
The current nitrogen dioxide (NO2) concentration at Yucaipa, California is 5.055 ppb.
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