Hourly Weather | Today Wednesday, August 12, 2026
West Allis, Wisconsin
8 AM
Foggy Weather
72°
Feels Like 73°
40
Humidity: 92%
UV Index: 0
Wind: 5 mph
9 AM
Foggy Weather
73°
Feels Like 75°
34
Humidity: 88%
UV Index: 1
Wind: 6 mph
10 AM
Foggy Weather
75°
Feels Like 79°
40
Humidity: 83%
UV Index: 1
Wind: 6 mph
11 AM
Stormy Weather
77°
Feels Like 79°
51
Humidity: 80%
UV Index: 2
Wind: 6 mph
12 PM
Foggy Weather
79°
Feels Like 84°
47
Humidity: 76%
UV Index: 3
Wind: 6 mph
1 PM
Foggy Weather
79°
Feels Like 86°
47
Humidity: 73%
UV Index: 3
Wind: 7 mph
2 PM
Sunny with a Chance of Thunderstorms
81°
Feels Like 82°
51
Humidity: 71%
UV Index: 3
Wind: 7 mph
3 PM
Cloudy Weather
81°
Feels Like 86°
47
Humidity: 68%
UV Index: 2
Wind: 8 mph
4 PM
Cloudy Weather
81°
Feels Like 84°
40
Humidity: 69%
UV Index: 2
Wind: 8 mph
5 PM
Cloudy Weather
79°
Feels Like 84°
34
Humidity: 70%
UV Index: 3
Wind: 8 mph
6 PM
Cloudy Weather
79°
Feels Like 82°
34
Humidity: 73%
UV Index: 2
Wind: 7 mph
7 PM
Cloudy Weather
77°
Feels Like 81°
22
Humidity: 76%
UV Index: 1
Wind: 7 mph
8 PM
Cloudy Night
75°
Feels Like 77°
0
Humidity: 81%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Night
73°
Feels Like 75°
0
Humidity: 83%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Night
72°
Feels Like 73°
0
Humidity: 88%
UV Index: 0
Wind: 5 mph
11 PM
Cloudy Night
70°
Feels Like 72°
0
Humidity: 92%
UV Index: 0
Wind: 5 mph

Hourly Air Quality Forecast - AQI (US EPA)

8 AM
47 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11.16 µg/m³
  • PM10: 11.55 µg/m³
  • O3: 0.010 ppm
  • NO2: 3.5 ppb
  • SO2: 0.5 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 10.71 µg/m³
  • PM10: 11.1 µg/m³
  • O3: 0.011 ppm
  • NO2: 3.6 ppb
  • SO2: 0.4 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

10 AM
43 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 10.22 µg/m³
  • PM10: 10.58 µg/m³
  • O3: 0.012 ppm
  • NO2: 3.1 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

11 AM
38 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.07 µg/m³
  • PM10: 9.37 µg/m³
  • O3: 0.026 ppm
  • NO2: 2.1 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.37 µg/m³
  • PM10: 8.63 µg/m³
  • O3: 0.030 ppm
  • NO2: 1.7 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.12 µg/m³
  • PM10: 8.37 µg/m³
  • O3: 0.030 ppm
  • NO2: 1.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.53 µg/m³
  • PM10: 7.74 µg/m³
  • O3: 0.032 ppm
  • NO2: 1.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.85 µg/m³
  • PM10: 7.03 µg/m³
  • O3: 0.034 ppm
  • NO2: 1.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.6 µg/m³
  • PM10: 6.78 µg/m³
  • O3: 0.034 ppm
  • NO2: 1.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.74 µg/m³
  • PM10: 6.93 µg/m³
  • O3: 0.033 ppm
  • NO2: 1.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

6 PM
30 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.13 µg/m³
  • PM10: 7.34 µg/m³
  • O3: 0.030 ppm
  • NO2: 2 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

7 PM
31 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.45 µg/m³
  • PM10: 7.69 µg/m³
  • O3: 0.028 ppm
  • NO2: 2.5 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.61 µg/m³
  • PM10: 7.93 µg/m³
  • O3: 0.020 ppm
  • NO2: 3.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8 µg/m³
  • PM10: 8.49 µg/m³
  • O3: 0.012 ppm
  • NO2: 4.5 ppb
  • SO2: 0.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 9.23 µg/m³
  • PM10: 9.99 µg/m³
  • O3: 0.008 ppm
  • NO2: 5.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 12.07 µg/m³
  • PM10: 13.17 µg/m³
  • O3: 0.006 ppm
  • NO2: 6.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.17 ppm

Health Recommendations:

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