Official AQ sensor station - Wind Cave, South Dakota, USA

  PM2.5 PM10 O3 AQI classification       
Current 53 10 40 53 Moderate Air Quality  
    
Forecastmin avg maxmin avg maxmin avg max           
05-15-2026915185101318Good Air Quality
     
05-16-20261215206101320Good Air Quality
     
05-17-20267111337913Good Air Quality
     
05-18-202681115461015Good Air Quality
     
05-19-20268101257912Good Air Quality
     
05-20-20261014186101518Good Air Quality
     
05-21-20261418208131420Good Air Quality
     
            

classification AQI The health effects should be based on 24 hours average values only.
Good Air Quality 0-50 Air quality is considered satisfactory, and air pollution poses little or no risk
Moderate Air Quality 50-100 Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.
Unhealthy for some 100-150 Members of sensitive groups may experience health effects. The general public is not likely to be affected.
Unhealthy Air Quality 150-200 Everyone may begin to experience health effects; members of sensitive groups may experience more serious health effects.
Very Unhealthy 200-300 Health alert: everyone may experience more serious health effects
Hazardous Air Quality > 300 Health warnings of emergency conditions. The entire population is more likely to be affected
 More information:  EPA Air Quality Index      Sensor data captured at: 05-17-2026 1:00 am