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)
21
Good
Rapid City, South Dakota
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
1.40 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
5.99 μg/m³
0
55
155
255
425
605+
23.04 ppb
0
55
71
86
201
201+
1.40 ppb
0
36
76
186
605
1005+
1.81 ppb
0
54
101
361
1250
2050+
0.21 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Rapid City, South Dakota
Rapid City, South Dakota
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AQI 27
Good
4.08μg/m³
PM2.5
11.93μg/m³
PM10
28.52ppb
O3
1.48ppb
SO2
1.42ppb
NO2
0.21ppm
CO
AQI 31
Good
3.77μg/m³
PM2.5
16.56μg/m³
PM10
33.17ppb
O3
0.06ppb
SO2
4.80ppb
NO2
0.16ppm
CO
AQI 34
Good
0.40μg/m³
PM2.5
2.01μg/m³
PM10
37.20ppb
O3
1.27ppb
SO2
1.38ppb
NO2
0.21ppm
CO
AQI 36
Good
5.32μg/m³
PM2.5
23.03μg/m³
PM10
38.63ppb
O3
1.29ppb
SO2
1.94ppb
NO2
0.29ppm
CO
AQI 32
Good
0.40μg/m³
PM2.5
2.00μg/m³
PM10
35.29ppb
O3
0.82ppb
SO2
1.65ppb
NO2
0.21ppm
CO
AQI 42
Good
3.07μg/m³
PM2.5
13.84μg/m³
PM10
44.92ppb
O3
0.70ppb
SO2
1.99ppb
NO2
0.21ppm
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 11:00:00 on 2025-06-05.
In the last 24 hrs, the best air quality in Rapid City, South Dakota was observed at 12:00:00 on 2025-06-05.
The current air quality in Rapid City, South Dakota is 21, 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 1.401 μg/m3.
The current PM10 concentration at Rapid City, South Dakota is 5.994 μg/m3.
The current carbon monoxide (CO) concentration at Rapid City, South Dakota is 0.214 ppm.
The current sulfur dioxide (SO2) concentration at Rapid City, South Dakota is 1.402 ppb.
The current ozone (O3) concentration at Rapid City, South Dakota is 23.037 ppm.
The current nitrogen dioxide (NO2) concentration at Rapid City, South Dakota is 1.809 ppb.
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