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

  PM2.5 PM10 O3 AQI classification       
Current 7 5 2.8 7 Good Air Quality
     
Forecastmin avg maxmin avg maxmin avg max           
10-13-2026223037791137Good Air Quality
     
10-14-20268121845618Good Air Quality
     
10-15-20265101723517Good Air Quality
     
10-16-2026261713717Good Air Quality
     
10-17-20263101625816Good Air Quality
     
10-18-2026122035581135Good Air Quality
     
10-19-202629364310121443Good Air Quality
     
10-20-202634526311182363Moderate 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: 10-15-2026 20:00