AQI

Rapid City Air Quality Index & Realtime Air Pollution

Live AQI
38(AQI-US)
Air Quality is
Good
PM2.5 :5.8µg/m³
PM10 :7.3µg/m³
Good
Moderate
Poor
Unhealthy
Severe
Hazardous
050100150200300301+
Good air quality mascot

Primary Air Pollutants Rapid City (South Dakota)

PM2.56µg/m³
PM2.5
Fine particles
PM107µg/m³
PM10
Coarse particles
SO₂1µg/m³
SO₂
Sulphur dioxide
CO114µg/m³
CO
Carbon monoxide
NO₂1µg/m³
NO₂
Nitrogen dioxide
O₃85µg/m³
O₃
Ozone

Hourly forecast Rapid City (South Dakota)

Now22°
Clear sky
19:0021°
Clear sky
20:0020°
Clear sky
21:0018°
Clear sky
22:0017°
Clear sky
23:0016°
Clear sky
00:0015°
Clear sky
01:0015°
Overcast
02:0016°
Mostly clear
03:0015°
Clear sky
04:0014°
Clear sky
05:0014°
Clear sky
06:0014°
Clear sky
07:0016°
Overcast
08:0016°
Overcast
09:0016°
Light drizzle
10:0017°
Overcast
11:0021°
Light drizzle
12:0024°
Overcast
13:0025°
Partly cloudy
14:0027°
Clear sky
15:0028°
Clear sky
16:0028°
Clear sky
17:0026°
Slight rain showers

Health Recommendations for Rapid City Residents

Based on current air quality: Good · AQI 38

Good
Air Purifier
Air PurifierTurn Off
Car Filter
Car FilterAdvisable
N95 Mask
N95 MaskAdvisable
Stay Indoor
Stay IndoorAdvisable

UV Index

1

Low

Safe to be outside. Minimal UV risk.

Wind

13.5 km/h

Light breeze — leaves rustling gently.

AQI Graph

Historical AQI Data Rapid City (South Dakota)

29
Min. AQIat 8:00 AM on 3rd Jun
39
Max. AQIat 7:00 PM on 3rd Jun
03-06-2026Time04-06-2026

United States Major Cities AQI Overview


Most Polluted Cities by AQI United States

119
Poor3x above Standard
93
Moderate2x above Standard
81
Moderate2x above Standard
79
Moderate1x above Standard
75
Moderate1x above Standard
75
Moderate3x above Standard
75
Moderate3x above Standard
73
Moderate2x above Standard
72
Moderate1x above Standard
67
Moderate1x above Standard
Last Updated: 03 Jun 2026, 22:43

Health Advice For People Living in Rapid City

0.3
Cigarettes
per day
Weekly2.1 Cigarettes
Monthly9 Cigarettes

Breathing the air in this location is equivalent to smoking 0.3 cigarettes a day.

Disclaimer: This cigarette-equivalent estimate is calculated using the average PM2.5 concentration from the past 24 hours, assuming constant exposure throughout that period.
Solutions for Rapid City Current AQI (US)
Air Purifier
Air PurifierTurn Off
Car Filter
Car FilterAdvisable
N95 Mask
N95 MaskAdvisable
Stay Indoor
Stay IndoorAdvisable
Must turn on the air purifier to enjoy fresh air.Get an Air Purifier

Prevent Health Problems: Understand Your Risks

Rapid City · Current air quality: Good · AQI 38

Low Trigger Risk

Headaches

Risk of Headaches symptoms is Low when AQI of Rapid City is Good (0-50).

Common signs

Common warning signs include: Pressure or tightness around the forehead and temples, Sensitivity to light or smell, Fatigue or difficulty concentrating.

Do’s :
  • Prefer indoor, filtered air when the AQI is elevated.
  • Drink water and pause from screen time or strong light if you are migraine-prone.
  • If you Consider using prescribed migraine meds, Store them accessible.
Don’ts :
  • Avoid do intense outdoor exercise during poor AQI periods.
  • Try not to ignore worsening issues that feel unusual for you.

Disclaimer: The health risks mentioned above are precautionary recommendations based on current AQI levels. While you may not experience immediate effects, prolonged exposure to air pollution can lead to these health issues over time. This is not medical advice. Please consult a clinician if you experience severe, unusual, or worsening symptoms.

Air Quality FAQs at Rapid City, South Dakota

The current real-time AQI (US) level in Rapid City, South Dakota is 38 (Good). This was last updated recently.

The best AQI (US) level was generally lower during the early afternoon in the last 24 hours.

The worst AQI (US) level typically peaks during early morning or late evening hours due to temperature inversion.

The AQI (US) levels in Rapid City, South Dakota have been fluctuating throughout the last 24 hours depending on traffic and weather conditions.

Current AQI (US) levels are good for everyone. It's advised to adjust your outdoor activities based on personal sensitivity.