X  Close Official AQ sensor station - Horicon, Wisconsin, USA

  PM2.5 PM10 O3 AQI classification       
Current 48 16 15.7 48 Good Air Quality
     
Forecastmin avg maxmin avg maxmin avg max           
04-03-202635677714273377Moderate Air Quality 
    
05-03-202662748221263382Moderate Air Quality 
    
06-03-202685110031838100Moderate Air Quality 
    
07-03-20261131553101755Moderate Air Quality 
    
08-03-202619323710171937Good Air Quality
     
09-03-202622283811152238Good Air Quality
     
10-03-20265924351124Good Air Quality
     
11-03-20264593349Good 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 warnings of emergency conditions. The entire population is more likely to be affected
Hazardous Air Quality > 300 Health alert: everyone may experience more serious health effects
 More information:  EPA Air Quality Index      Sensor data captured at: 06-03-2026 20:00