Hourly Weather | Today Tuesday, September 1, 2026
Milwaukee, Wisconsin
11 AM
Cloudy Weather
82°
Feels Like 95°
7
Humidity: 74%
UV Index: 5
Wind: 7 mph
12 PM
Cloudy Weather
84°
Feels Like 97°
7
Humidity: 71%
UV Index: 6
Wind: 7 mph
1 PM
Cloudy Weather
86°
Feels Like 99°
11
Humidity: 65%
UV Index: 6
Wind: 7 mph
2 PM
Cloudy Weather
88°
Feels Like 99°
17
Humidity: 63%
UV Index: 6
Wind: 7 mph
3 PM
Cloudy Weather
88°
Feels Like 97°
17
Humidity: 62%
UV Index: 5
Wind: 8 mph
4 PM
Cloudy Weather
88°
Feels Like 97°
22
Humidity: 60%
UV Index: 3
Wind: 8 mph
5 PM
Partly Sunny with Showers
86°
Feels Like 91°
54
Humidity: 69%
UV Index: 2
Wind: 8 mph
6 PM
Cloudy Weather
86°
Feels Like 93°
49
Humidity: 66%
UV Index: 1
Wind: 7 mph
7 PM
Cloudy Weather
84°
Feels Like 91°
42
Humidity: 70%
UV Index: 0
Wind: 6 mph
8 PM
Cloudy Night
81°
Feels Like 88°
34
Humidity: 77%
UV Index: 0
Wind: 7 mph
9 PM
Cloudy Night
79°
Feels Like 84°
34
Humidity: 85%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Night
75°
Feels Like 82°
38
Humidity: 94%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Night
75°
Feels Like 81°
49
Humidity: 94%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 11.88 µg/m³
  • PM10: 12.78 µg/m³
  • O3: 0.023 ppm
  • NO2: 2.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

12 PM
52 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 12.76 µg/m³
  • PM10: 13.66 µg/m³
  • O3: 0.028 ppm
  • NO2: 1.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

1 PM
54 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 13.78 µg/m³
  • PM10: 14.63 µg/m³
  • O3: 0.035 ppm
  • NO2: 1.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

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

Pollutant Concentrations:

  • PM2.5: 11.12 µg/m³
  • PM10: 11.7 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.96 µg/m³
  • PM10: 8.35 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.8 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
41 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.03 µg/m³
  • PM10: 6.34 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.9 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
41 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.95 µg/m³
  • PM10: 5.27 µg/m³
  • O3: 0.044 ppm
  • NO2: 1.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.76 µg/m³
  • PM10: 5.17 µg/m³
  • O3: 0.042 ppm
  • NO2: 2.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.29 µg/m³
  • PM10: 5.81 µg/m³
  • O3: 0.041 ppm
  • NO2: 3 ppb
  • SO2: 0.4 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.3 µg/m³
  • PM10: 6.94 µg/m³
  • O3: 0.039 ppm
  • NO2: 3.4 ppb
  • SO2: 0.5 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.36 µg/m³
  • PM10: 8.11 µg/m³
  • O3: 0.038 ppm
  • NO2: 3.4 ppb
  • SO2: 0.5 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.16 µg/m³
  • PM10: 8.95 µg/m³
  • O3: 0.037 ppm
  • NO2: 3.2 ppb
  • SO2: 0.5 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: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 8.52 µg/m³
  • PM10: 9.31 µg/m³
  • O3: 0.035 ppm
  • NO2: 3.1 ppb
  • SO2: 0.5 ppb
  • CO: 0.12 ppm

Health Recommendations:

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