Air Quality in Rapid City, United States
Windy
35.2°C · 19.6% humidity
35.2°
Feels 35.2°
55
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
1 station
Nearby Monitoring Stations
Rapid City's air quality — share it
AQI Forecast
27
12pm
27
27
55
3pm
47
41
37
6pm
31
29
28
9pm
27
26
26
12am
26
26
26
3am
25
25
25
6am
25
25
25
9am
25
24
Air Quality Index Trend
25h · 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.
19.6%
Humidity
60.6 km/h
Wind SE
1006.4 hPa
Pressure
12.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
14.0 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Rapid City?
Temperature & Precipitation
PM2.5 Trend
25h · 1 stationPM2.514.0 µg/m³
✓ WHO
Moderate
PM1013.7 µg/m³
Good
UV INDEX12.9
Extreme
Station readings (1 station within 25 km)
14.0
Median
14.0
Average
14.0
Low
14.0
High
PM2.5 µg/m³ · Model: 6.5 · Bias: -7.5
What is the 7-day forecast for Rapid City?
07-21
34.0° 21.7°
0.13 mm
07-22
35.2° 18.7°
0.06 mm
07-23
28.0° 16.9°
07-24
34.2° 13.3°
0.19 mm
07-25
34.9° 20.8°
6.5 mm
07-26
30.8° 16.9°
07-27
36.6° 19.9°
Both models agree
Avg diff: 4.3°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 2026-07-21T21:49 UTC.