Hourly Weather | Today Thursday, February 26, 2026
West Allis, Wisconsin
11 AM
Cloudy Weather
32°
Feels Like 27°
0
Humidity: 44%
UV Index: 2
Wind: 9 mph
12 PM
Cloudy Weather
36°
Feels Like 28°
0
Humidity: 39%
UV Index: 2
Wind: 11 mph
1 PM
Cloudy Weather
37°
Feels Like 30°
0
Humidity: 38%
UV Index: 1
Wind: 12 mph
2 PM
Cloudy Weather
39°
Feels Like 32°
0
Humidity: 40%
UV Index: 1
Wind: 12 mph
3 PM
Cloudy Weather
41°
Feels Like 34°
0
Humidity: 44%
UV Index: 1
Wind: 11 mph
4 PM
Cloudy Weather
41°
Feels Like 36°
0
Humidity: 46%
UV Index: 1
Wind: 11 mph
5 PM
Cloudy Weather
39°
Feels Like 32°
0
Humidity: 54%
UV Index: 0
Wind: 11 mph
6 PM
Cloudy Night
37°
Feels Like 30°
0
Humidity: 61%
UV Index: 0
Wind: 9 mph
7 PM
Cloudy Night
36°
Feels Like 30°
0
Humidity: 66%
UV Index: 0
Wind: 8 mph
8 PM
Cloudy Night
36°
Feels Like 28°
0
Humidity: 68%
UV Index: 0
Wind: 9 mph
9 PM
Night
36°
Feels Like 28°
0
Humidity: 70%
UV Index: 0
Wind: 9 mph
10 PM
Night
34°
Feels Like 27°
0
Humidity: 73%
UV Index: 0
Wind: 8 mph
11 PM
Night
34°
Feels Like 28°
0
Humidity: 74%
UV Index: 0
Wind: 8 mph

Hourly Air Quality Forecast - AQI (US EPA)

11 AM
37 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 8.1 µg/m³
  • PM10: 10.21 µg/m³
  • O3: 0.040 ppm
  • NO2: 5.8 ppb
  • SO2: 1.9 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

12 PM
38 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 8.66 µg/m³
  • PM10: 10.59 µg/m³
  • O3: 0.041 ppm
  • NO2: 5.3 ppb
  • SO2: 1.9 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

1 PM
41 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.77 µg/m³
  • PM10: 8.04 µg/m³
  • O3: 0.045 ppm
  • NO2: 4 ppb
  • SO2: 1.3 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.56 µg/m³
  • PM10: 5.32 µg/m³
  • O3: 0.047 ppm
  • NO2: 2.7 ppb
  • SO2: 0.9 ppb
  • CO: 0.16 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: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.21 µg/m³
  • PM10: 3.73 µg/m³
  • O3: 0.047 ppm
  • NO2: 2.3 ppb
  • SO2: 0.8 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.37 µg/m³
  • PM10: 2.85 µg/m³
  • O3: 0.046 ppm
  • NO2: 2.8 ppb
  • SO2: 0.7 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.25 µg/m³
  • PM10: 2.79 µg/m³
  • O3: 0.043 ppm
  • NO2: 4.2 ppb
  • SO2: 0.6 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.55 µg/m³
  • PM10: 3.18 µg/m³
  • O3: 0.039 ppm
  • NO2: 5.9 ppb
  • SO2: 0.5 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.86 µg/m³
  • PM10: 3.6 µg/m³
  • O3: 0.036 ppm
  • NO2: 6.8 ppb
  • SO2: 0.5 ppb
  • CO: 0.18 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: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.15 µg/m³
  • PM10: 3.98 µg/m³
  • O3: 0.034 ppm
  • NO2: 7 ppb
  • SO2: 0.5 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.42 µg/m³
  • PM10: 4.3 µg/m³
  • O3: 0.034 ppm
  • NO2: 6.9 ppb
  • SO2: 0.5 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.17 µg/m³
  • PM10: 5.08 µg/m³
  • O3: 0.033 ppm
  • NO2: 6.5 ppb
  • SO2: 0.8 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.24 µg/m³
  • PM10: 6.17 µg/m³
  • O3: 0.032 ppm
  • NO2: 6.4 ppb
  • SO2: 0.9 ppb
  • CO: 0.19 ppm

Health Recommendations:

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