Hourly Weather | Today Tuesday, April 7, 2026
Waukesha, Wisconsin
11 AM
Sunny Weather
34°
Feels Like 37°
0
Humidity: 43%
UV Index: 4
Wind: 7 mph
12 PM
Cloudy Weather
36°
Feels Like 39°
0
Humidity: 39%
UV Index: 5
Wind: 8 mph
1 PM
Cloudy Weather
37°
Feels Like 39°
0
Humidity: 38%
UV Index: 6
Wind: 9 mph
2 PM
Cloudy Weather
37°
Feels Like 39°
0
Humidity: 38%
UV Index: 5
Wind: 10 mph
3 PM
Cloudy Weather
37°
Feels Like 37°
0
Humidity: 40%
UV Index: 4
Wind: 10 mph
4 PM
Cloudy Weather
39°
Feels Like 36°
0
Humidity: 40%
UV Index: 3
Wind: 10 mph
5 PM
Cloudy Weather
37°
Feels Like 32°
0
Humidity: 44%
UV Index: 2
Wind: 10 mph
6 PM
Cloudy Weather
36°
Feels Like 30°
0
Humidity: 46%
UV Index: 1
Wind: 10 mph
7 PM
Cloudy Weather
34°
Feels Like 27°
0
Humidity: 51%
UV Index: 0
Wind: 9 mph
8 PM
Cloudy Night
34°
Feels Like 27°
0
Humidity: 53%
UV Index: 0
Wind: 8 mph
9 PM
Cloudy Night
30°
Feels Like 25°
0
Humidity: 57%
UV Index: 0
Wind: 8 mph
10 PM
Cloudy Night
28°
Feels Like 23°
0
Humidity: 63%
UV Index: 0
Wind: 7 mph
11 PM
Cloudy Night
28°
Feels Like 21°
1
Humidity: 69%
UV Index: 0
Wind: 7 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 1.61 µg/m³
  • PM10: 2.3 µg/m³
  • O3: 0.047 ppm
  • NO2: 1.8 ppb
  • SO2: 0.5 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.48 µg/m³
  • PM10: 3.16 µg/m³
  • O3: 0.050 ppm
  • NO2: 1.6 ppb
  • SO2: 0.6 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.07 µg/m³
  • PM10: 4.81 µg/m³
  • O3: 0.052 ppm
  • NO2: 1.5 ppb
  • SO2: 0.6 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

2 PM
57 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.65 µg/m³
  • PM10: 6.4 µg/m³
  • O3: 0.056 ppm
  • NO2: 1.4 ppb
  • SO2: 0.6 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

3 PM
68 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 7.45 µg/m³
  • PM10: 8.24 µg/m³
  • O3: 0.060 ppm
  • NO2: 1.3 ppb
  • SO2: 0.7 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

4 PM
75 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 9.2 µg/m³
  • PM10: 10.1 µg/m³
  • O3: 0.062 ppm
  • NO2: 1.3 ppb
  • SO2: 0.8 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

5 PM
80 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 10.51 µg/m³
  • PM10: 11.53 µg/m³
  • O3: 0.064 ppm
  • NO2: 1.6 ppb
  • SO2: 0.9 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

6 PM
77 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 11.13 µg/m³
  • PM10: 12.31 µg/m³
  • O3: 0.063 ppm
  • NO2: 2.6 ppb
  • SO2: 1.1 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

7 PM
70 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 10.71 µg/m³
  • PM10: 12.05 µg/m³
  • O3: 0.060 ppm
  • NO2: 3.8 ppb
  • SO2: 1.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

8 PM
59 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 9.8 µg/m³
  • PM10: 11.33 µg/m³
  • O3: 0.057 ppm
  • NO2: 4.8 ppb
  • SO2: 1.3 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 9.17 µg/m³
  • PM10: 10.95 µg/m³
  • O3: 0.053 ppm
  • NO2: 5.9 ppb
  • SO2: 1.5 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 9.05 µg/m³
  • PM10: 11.08 µg/m³
  • O3: 0.050 ppm
  • NO2: 6.8 ppb
  • SO2: 1.7 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 9.37 µg/m³
  • PM10: 11.57 µg/m³
  • O3: 0.046 ppm
  • NO2: 7.4 ppb
  • SO2: 2.2 ppb
  • CO: 0.18 ppm

Health Recommendations:

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