Stay updated with real-time air quality in Rapid City, South Dakota 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)
22
Good
Rapid City, South Dakota
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
4.39 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
14.92 μg/m³
0
55
155
255
425
605+
24.39 ppb
0
55
71
86
201
201+
1.15 ppb
0
36
76
186
605
1005+
2.56 ppb
0
54
101
361
1250
2050+
0.27 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Rapid City, South Dakota
Rapid City, South Dakota
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AQI 37
Good
5.57μg/m³
PM2.5
15.96μg/m³
PM10
40.17ppb
O3
1.98ppb
SO2
1.34ppb
NO2
0.13ppm
CO
AQI 37
Good
6.43μg/m³
PM2.5
28.72μg/m³
PM10
39.55ppb
O3
0.13ppb
SO2
1.38ppb
NO2
0.14ppm
CO
AQI 43
Good
4.70μg/m³
PM2.5
20.98μg/m³
PM10
45.87ppb
O3
1.85ppb
SO2
1.16ppb
NO2
0.13ppm
CO
AQI 45
Good
3.21μg/m³
PM2.5
14.00μg/m³
PM10
49.43ppb
O3
1.47ppb
SO2
1.23ppb
NO2
0.12ppm
CO
AQI 51
Moderate
3.50μg/m³
PM2.5
16.01μg/m³
PM10
55.15ppb
O3
1.07ppb
SO2
2.02ppb
NO2
0.13ppm
CO
AQI 46
Good
5.16μg/m³
PM2.5
22.83μg/m³
PM10
49.96ppb
O3
0.93ppb
SO2
1.99ppb
NO2
0.13ppm
CO
Air quality data and pollutant measurements for South Dakota, 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 Rapid City, South Dakota is updated every hour.
The worst air quality in Rapid City, South Dakota in the last 24 hours was observed at 10:00:00 on 2025-07-21.
In the last 24 hrs, the best air quality in Rapid City, South Dakota was observed at 08:00:00 on 2025-07-21.
The current air quality in Rapid City, South Dakota is 35, categorized as Good based on real-time data.
The most common pollutant in Rapid City, South Dakota is O3.
If the air quality in Rapid City, South Dakota is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Rapid City, South Dakota is 4.767 μg/m3.
The current PM10 concentration at Rapid City, South Dakota is 21 μg/m3.
The current carbon monoxide (CO) concentration at Rapid City, South Dakota is 0.158 ppm.
The current sulfur dioxide (SO2) concentration at Rapid City, South Dakota is 0.188 ppb.
The current ozone (O3) concentration at Rapid City, South Dakota is 38.343 ppm.
The current nitrogen dioxide (NO2) concentration at Rapid City, South Dakota is 3.707 ppb.
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