Air Quality in Rapid City, United States
Windy
24.5°C · 21.7% humidity
24.5°
Feels 24.5°
36
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
Rapid City's air quality — share it
AQI Forecast
24
7am
24
24
36
10am
33
31
29
1pm
28
27
27
4pm
26
26
25
7pm
25
25
25
10pm
25
25
25
1am
25
25
25
4am
25
25
Air Quality Index Trend
31h · 1 stnRapid City's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
21.7%
Humidity
53.3 km/h
Wind ENE
1017.4 hPa
Pressure
10.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
8.6 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for Rapid City?
Temperature & Precipitation
PM2.5 Trend
31h · 1 stationPM2.58.6 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX10.9
Extreme
Station readings (1 station within 25 km)
8.6
Median
8.6
Average
8.6
Low
8.6
High
PM2.5 µg/m³ · Model: 5.9 · Bias: -2.7
What is the 7-day forecast for Rapid City?
09-05
24.5° 10.6°
0.94 mm
09-06
28.0° 9.7°
09-07
31.1° 13.2°
0.19 mm
09-08
21.8° 18.0°
2.31 mm
09-09
28.8° 22.8°
0.13 mm
09-10
26.3° 6.4°
0.62 mm
09-11
26.4° 10.4°
0.19 mm
Both models agree
Avg diff: 5.6°C
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-09-05T16:30 UTC.