X  Close Official AQ sensor station - Madison East, Wisconsin, USA

  PM2.5 PM10 O3 AQI classification       
Current 18 11 38.4 38.4 Good Air Quality
     
Forecastmin avg maxmin avg maxmin avg max           
07-01-202656585920212359Moderate Air Quality 
    
07-02-2026233052681752Moderate Air Quality 
    
07-03-2026263138781038Good Air Quality
     
07-04-2026142243461143Good Air Quality
     
07-05-202620283957939Good Air Quality
     
07-06-20262235526101552Moderate Air Quality 
    
07-07-202644505714151757Moderate Air Quality 
    
07-08-202646586513182265Moderate 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: 07-03-2026 14:00