Rapid City Air Quality Index (AQI) Today

Air quality in Rapid City

The US Air Quality Index (EPA) grades air from 0 to 500 using fine particles (PM2.5/PM10), ozone and nitrogen dioxide. 0-50 is Good, 51-100 Moderate, 101-150 Unhealthy for Sensitive Groups, and anything higher affects everyone.

US AQI · EPA

Good

PM2.5

2.1 µg/m³

WHO guideline 15

PM10

2.4 µg/m³

WHO guideline 45

NO₂ · O₃

2 · 67

µg/m³

Hour by hour (12h)

US EPA AQI

2:00 PM 💨 PM2.5 2.1 µg/m³

32Good

3:00 PM 💨 PM2.5 2.1 µg/m³

29Good

4:00 PM 💨 PM2.5 2.9 µg/m³

26Good

5:00 PM 💨 PM2.5 4 µg/m³

22Good

6:00 PM 💨 PM2.5 5.4 µg/m³

23Good

7:00 PM 💨 PM2.5 6.1 µg/m³

25Good

8:00 PM 💨 PM2.5 6.4 µg/m³

27Good

9:00 PM 💨 PM2.5 6.3 µg/m³

26Good

10:00 PM 💨 PM2.5 5.9 µg/m³

25Good

11:00 PM 💨 PM2.5 5.2 µg/m³

22Good

12:00 AM 💨 PM2.5 4.4 µg/m³

18Good

1:00 AM 💨 PM2.5 3.8 µg/m³

16Good

Next few days

daily max · US EPA AQI

Sun 💨 Good · UV Low

Mon 💨 Good · UV Low

Tue 💨 Good · UV Low

Wed 💨 Good · UV Low

Thu 💨 Good · UV Low

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Rapid City, SD Air Quality

Air quality in Rapid City

Hour by hour (12h)

Next few days

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