Hourly Weather | Today Tuesday, September 1, 2026
St. Clair Shores, Michigan
12 PM
Cloudy Weather
84°
Feels Like 95°
20
Humidity: 68%
UV Index: 5
Wind: 7 mph
1 PM
Cloudy Weather
86°
Feels Like 97°
16
Humidity: 64%
UV Index: 5
Wind: 7 mph
2 PM
Cloudy Weather
88°
Feels Like 99°
7
Humidity: 62%
UV Index: 5
Wind: 7 mph
3 PM
Cloudy Weather
88°
Feels Like 99°
7
Humidity: 59%
UV Index: 4
Wind: 7 mph
4 PM
Cloudy Weather
90°
Feels Like 99°
6
Humidity: 56%
UV Index: 3
Wind: 7 mph
5 PM
Cloudy Weather
88°
Feels Like 93°
5
Humidity: 60%
UV Index: 1
Wind: 8 mph
6 PM
Cloudy Weather
88°
Feels Like 93°
5
Humidity: 59%
UV Index: 1
Wind: 8 mph
7 PM
Cloudy Weather
86°
Feels Like 91°
4
Humidity: 64%
UV Index: 0
Wind: 8 mph
8 PM
Cloudy Weather
82°
Feels Like 86°
2
Humidity: 69%
UV Index: 0
Wind: 7 mph
9 PM
Cloudy Night
81°
Feels Like 84°
2
Humidity: 76%
UV Index: 0
Wind: 7 mph
10 PM
Cloudy Night
79°
Feels Like 82°
2
Humidity: 80%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Night
79°
Feels Like 82°
1
Humidity: 81%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

12 PM
44 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 10.6 µg/m³
  • PM10: 11.33 µg/m³
  • O3: 0.033 ppm
  • NO2: 1.8 ppb
  • SO2: 0.7 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

1 PM
45 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 10.81 µg/m³
  • PM10: 11.42 µg/m³
  • O3: 0.037 ppm
  • NO2: 1.5 ppb
  • SO2: 0.7 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

2 PM
46 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11.11 µg/m³
  • PM10: 11.64 µg/m³
  • O3: 0.040 ppm
  • NO2: 1.3 ppb
  • SO2: 0.6 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

3 PM
44 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 10.66 µg/m³
  • PM10: 11.1 µg/m³
  • O3: 0.045 ppm
  • NO2: 1 ppb
  • SO2: 0.5 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

4 PM
46 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 10.21 µg/m³
  • PM10: 10.62 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.9 ppb
  • SO2: 0.5 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

5 PM
48 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 9.78 µg/m³
  • PM10: 10.18 µg/m³
  • O3: 0.051 ppm
  • NO2: 1 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

6 PM
47 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 9.7 µg/m³
  • PM10: 10.15 µg/m³
  • O3: 0.050 ppm
  • NO2: 1.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 9.8 µg/m³
  • PM10: 10.35 µg/m³
  • O3: 0.046 ppm
  • NO2: 2.1 ppb
  • SO2: 0.4 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

8 PM
41 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.72 µg/m³
  • PM10: 10.34 µg/m³
  • O3: 0.042 ppm
  • NO2: 2.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

9 PM
40 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.59 µg/m³
  • PM10: 10.27 µg/m³
  • O3: 0.038 ppm
  • NO2: 2.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

10 PM
40 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.58 µg/m³
  • PM10: 10.32 µg/m³
  • O3: 0.034 ppm
  • NO2: 2.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

11 PM
40 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.64 µg/m³
  • PM10: 10.42 µg/m³
  • O3: 0.031 ppm
  • NO2: 2.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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