What is the air quality in Rapid City today?

The current Air Quality Index (AQI) in Rapid City is 54 (Moderate). PM2.5 concentration is 13.5 µg/m³.

What is the temperature in Rapid City right now?

The current temperature in Rapid City is 15.9°C (feels like 15.9°C). Humidity is 39.1% and wind speed is 50.6 km/h.

Air Quality in Rapid City, United States

Windy

15.9°C · 39.1% humidity

15.9°

Feels 15.9°

Moderate

Unusually sensitive people should consider reducing prolonged outdoor exertion.

Model forecast

Nearby Monitoring Stations

AQI Forecast

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View AQI history for Rapid City →

Rapid 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.

39.1%

Humidity

50.6 km/h

Wind SSW

1011.3 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

13.5 µg/m³

PM10

54.9 µg/m³

050100150200300500

What is the weather forecast for Rapid City?

Temperature & Precipitation

PM2.513.5 µg/m³ ✓ WHO

Moderate

PM1054.9 µg/m³

Moderate

UV INDEX0.0

Low

Both models agree Avg diff: 6.0°C

Where are air quality stations near Rapid City?

Credit Union, South Dakota, USA

3.5 km PM2.5: 8.2 µg/m³

What cities are near Rapid City?

25 Gillette 30 Casper 27 Sheridan

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ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-10-20T21:45 UTC.