Hourly Weather | Today Wednesday, May 20, 2026
Rochester Hills, Michigan
9 PM
Cloudy Night
50°
Feels Like 45°
0
Humidity: 61%
UV Index: 0
Wind: 9 mph
10 PM
Cloudy Night
46°
Feels Like 43°
0
Humidity: 62%
UV Index: 0
Wind: 8 mph
11 PM
Cloudy Night
45°
Feels Like 41°
0
Humidity: 63%
UV Index: 0
Wind: 7 mph

Hourly Air Quality Forecast - AQI (US EPA)

9 PM
36 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.37 µg/m³
  • PM10: 3.11 µg/m³
  • O3: 0.039 ppm
  • NO2: 3 ppb
  • SO2: 1.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.36 µg/m³
  • PM10: 3.2 µg/m³
  • O3: 0.039 ppm
  • NO2: 3.3 ppb
  • SO2: 1.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.54 µg/m³
  • PM10: 3.42 µg/m³
  • O3: 0.039 ppm
  • NO2: 3.5 ppb
  • SO2: 1.5 ppb
  • CO: 0.12 ppm

Health Recommendations:

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