Hourly Weather | Today Tuesday, June 9, 2026
Decatur, Illinois
10 PM
Cloudy Night
81°
Feels Like 86°
49
Humidity: 81%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Night
79°
Feels Like 84°
34
Humidity: 88%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

10 PM
21 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.25 µg/m³
  • PM10: 3.87 µg/m³
  • O3: 0.023 ppm
  • NO2: 2.7 ppb
  • SO2: 0.9 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.94 µg/m³
  • PM10: 3.59 µg/m³
  • O3: 0.020 ppm
  • NO2: 2.7 ppb
  • SO2: 0.8 ppb
  • CO: 0.11 ppm

Health Recommendations:

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