Hourly Weather | Today Wednesday, August 12, 2026
Waukesha, Wisconsin
8 AM
Foggy Weather
72°
Feels Like 73°
34
Humidity: 94%
UV Index: 0
Wind: 4 mph
9 AM
Foggy Weather
73°
Feels Like 75°
34
Humidity: 89%
UV Index: 1
Wind: 6 mph
10 AM
Foggy Weather
75°
Feels Like 79°
40
Humidity: 84%
UV Index: 1
Wind: 6 mph
11 AM
Stormy Weather
77°
Feels Like 79°
51
Humidity: 80%
UV Index: 1
Wind: 6 mph
12 PM
Foggy Weather
79°
Feels Like 84°
47
Humidity: 76%
UV Index: 3
Wind: 6 mph
1 PM
Foggy Weather
81°
Feels Like 88°
43
Humidity: 73%
UV Index: 4
Wind: 6 mph
2 PM
Cloudy Weather
81°
Feels Like 90°
47
Humidity: 69%
UV Index: 3
Wind: 6 mph
3 PM
Sunny with a Chance of Thunderstorms
82°
Feels Like 84°
51
Humidity: 68%
UV Index: 2
Wind: 6 mph
4 PM
Cloudy Weather
82°
Feels Like 90°
47
Humidity: 64%
UV Index: 2
Wind: 6 mph
5 PM
Cloudy Weather
82°
Feels Like 88°
34
Humidity: 67%
UV Index: 3
Wind: 7 mph
6 PM
Cloudy Weather
81°
Feels Like 84°
34
Humidity: 69%
UV Index: 2
Wind: 6 mph
7 PM
Cloudy Weather
79°
Feels Like 82°
22
Humidity: 74%
UV Index: 1
Wind: 6 mph
8 PM
Cloudy Weather
75°
Feels Like 79°
0
Humidity: 80%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Night
73°
Feels Like 77°
0
Humidity: 84%
UV Index: 0
Wind: 5 mph
10 PM
Cloudy Night
72°
Feels Like 73°
0
Humidity: 89%
UV Index: 0
Wind: 4 mph
11 PM
Cloudy Night
70°
Feels Like 72°
0
Humidity: 94%
UV Index: 0
Wind: 4 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 10.65 µg/m³
  • PM10: 11 µg/m³
  • O3: 0.011 ppm
  • NO2: 2.9 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 10.3 µg/m³
  • PM10: 10.65 µg/m³
  • O3: 0.012 ppm
  • NO2: 3 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 9.92 µg/m³
  • PM10: 10.25 µg/m³
  • O3: 0.013 ppm
  • NO2: 2.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.96 µg/m³
  • PM10: 9.24 µg/m³
  • O3: 0.026 ppm
  • NO2: 1.8 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: 8.36 µg/m³
  • PM10: 8.62 µg/m³
  • O3: 0.031 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.

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

Pollutant Concentrations:

  • PM2.5: 8.22 µg/m³
  • PM10: 8.47 µg/m³
  • O3: 0.031 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.

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

Pollutant Concentrations:

  • PM2.5: 7.71 µg/m³
  • PM10: 7.92 µg/m³
  • O3: 0.034 ppm
  • NO2: 1.1 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: 7.09 µg/m³
  • PM10: 7.27 µg/m³
  • O3: 0.035 ppm
  • NO2: 1 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: 6.9 µg/m³
  • PM10: 7.08 µg/m³
  • O3: 0.035 ppm
  • NO2: 1 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: 7.05 µg/m³
  • PM10: 7.24 µg/m³
  • O3: 0.034 ppm
  • NO2: 1.2 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
31 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.38 µg/m³
  • PM10: 7.59 µg/m³
  • O3: 0.031 ppm
  • NO2: 1.7 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
32 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.61 µg/m³
  • PM10: 7.84 µg/m³
  • O3: 0.028 ppm
  • NO2: 2.1 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: 7.74 µg/m³
  • PM10: 8.06 µg/m³
  • O3: 0.020 ppm
  • NO2: 3.1 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
34 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 8.08 µg/m³
  • PM10: 8.54 µg/m³
  • O3: 0.012 ppm
  • NO2: 4 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.97 µg/m³
  • PM10: 9.64 µg/m³
  • O3: 0.008 ppm
  • NO2: 4.7 ppb
  • SO2: 0.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 10.83 µg/m³
  • PM10: 11.74 µg/m³
  • O3: 0.006 ppm
  • NO2: 5.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.16 ppm

Health Recommendations:

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