Hourly Weather | Today Tuesday, June 9, 2026
St. Peters, Missouri
11 PM
Cloudy Night
81°
Feels Like 90°
7
Humidity: 86%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 2.3 µg/m³
  • PM10: 3.14 µg/m³
  • O3: 0.020 ppm
  • NO2: 0.4 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

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