Hourly Weather | Today Wednesday, February 25, 2026
Madison, Wisconsin
11 PM
Cloudy Night
36°
Feels Like 30°
0
Humidity: 75%
UV Index: 0
Wind: 7 mph

Hourly Air Quality Forecast - AQI (US EPA)

11 PM
43 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.58 µg/m³
  • PM10: 4.05 µg/m³
  • O3: 0.047 ppm
  • NO2: 2 ppb
  • SO2: 0.2 ppb
  • CO: 0.16 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.