Hourly Weather | Today Wednesday, August 12, 2026
St. Clair Shores, Michigan
9 AM
Foggy Weather
73°
Feels Like 75°
37
Humidity: 84%
UV Index: 1
Wind: 7 mph
10 AM
Foggy Weather
75°
Feels Like 79°
34
Humidity: 81%
UV Index: 2
Wind: 7 mph
11 AM
Foggy Weather
75°
Feels Like 81°
34
Humidity: 76%
UV Index: 2
Wind: 7 mph
12 PM
Foggy Weather
79°
Feels Like 82°
34
Humidity: 73%
UV Index: 3
Wind: 8 mph
1 PM
Foggy Weather
79°
Feels Like 84°
34
Humidity: 68%
UV Index: 4
Wind: 8 mph
2 PM
Cloudy Weather
81°
Feels Like 86°
34
Humidity: 65%
UV Index: 3
Wind: 8 mph
3 PM
Cloudy Weather
82°
Feels Like 86°
34
Humidity: 63%
UV Index: 3
Wind: 8 mph
4 PM
Cloudy Weather
82°
Feels Like 86°
37
Humidity: 61%
UV Index: 2
Wind: 8 mph
5 PM
Cloudy Weather
84°
Feels Like 86°
43
Humidity: 59%
UV Index: 1
Wind: 8 mph
6 PM
Cloudy Weather
82°
Feels Like 84°
47
Humidity: 64%
UV Index: 1
Wind: 8 mph
7 PM
Sunny with a Chance of Thunderstorms
81°
Feels Like 79°
51
Humidity: 71%
UV Index: 0
Wind: 7 mph
8 PM
Cloudy Weather
79°
Feels Like 81°
25
Humidity: 74%
UV Index: 0
Wind: 7 mph
9 PM
Cloudy Night
77°
Feels Like 79°
20
Humidity: 78%
UV Index: 0
Wind: 7 mph
10 PM
Cloudy Night
75°
Feels Like 77°
20
Humidity: 81%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Night
73°
Feels Like 75°
20
Humidity: 84%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

9 AM
19 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 4.46 µg/m³
  • PM10: 5.07 µg/m³
  • O3: 0.007 ppm
  • NO2: 3.9 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 AM
20 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 4.71 µg/m³
  • PM10: 5.39 µg/m³
  • O3: 0.008 ppm
  • NO2: 3.8 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 AM
21 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 4.97 µg/m³
  • PM10: 5.64 µg/m³
  • O3: 0.009 ppm
  • NO2: 3.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.89 µg/m³
  • PM10: 5.38 µg/m³
  • O3: 0.014 ppm
  • NO2: 2.8 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.57 µg/m³
  • PM10: 4.95 µg/m³
  • O3: 0.017 ppm
  • NO2: 2.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.37 µg/m³
  • PM10: 4.71 µg/m³
  • O3: 0.018 ppm
  • NO2: 2.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

3 PM
20 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.13 µg/m³
  • PM10: 4.45 µg/m³
  • O3: 0.021 ppm
  • NO2: 1.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.31 µg/m³
  • PM10: 4.6 µg/m³
  • O3: 0.026 ppm
  • NO2: 1.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.67 µg/m³
  • PM10: 4.92 µg/m³
  • O3: 0.029 ppm
  • NO2: 1.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.89 µg/m³
  • PM10: 5.16 µg/m³
  • O3: 0.031 ppm
  • NO2: 1.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.05 µg/m³
  • PM10: 5.39 µg/m³
  • O3: 0.030 ppm
  • NO2: 2.1 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

8 PM
26 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.2 µg/m³
  • PM10: 5.59 µg/m³
  • O3: 0.028 ppm
  • NO2: 2.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.48 µg/m³
  • PM10: 5.95 µg/m³
  • O3: 0.022 ppm
  • NO2: 3.7 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
24 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 5.86 µg/m³
  • PM10: 6.44 µg/m³
  • O3: 0.015 ppm
  • NO2: 4.6 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.28 µg/m³
  • PM10: 6.96 µg/m³
  • O3: 0.010 ppm
  • NO2: 5.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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