Hourly Weather | Today Tuesday, April 7, 2026
Madison, Wisconsin
9 AM
Cloudy Weather
28°
Feels Like 28°
0
Humidity: 44%
UV Index: 2
Wind: 7 mph
10 AM
Cloudy Weather
30°
Feels Like 34°
0
Humidity: 40%
UV Index: 3
Wind: 7 mph
11 AM
Cloudy Weather
34°
Feels Like 37°
0
Humidity: 35%
UV Index: 4
Wind: 8 mph
12 PM
Cloudy Weather
37°
Feels Like 41°
0
Humidity: 31%
UV Index: 5
Wind: 8 mph
1 PM
Cloudy Weather
39°
Feels Like 43°
0
Humidity: 29%
UV Index: 6
Wind: 8 mph
2 PM
Cloudy Weather
41°
Feels Like 45°
0
Humidity: 27%
UV Index: 5
Wind: 8 mph
3 PM
Cloudy Weather
43°
Feels Like 45°
0
Humidity: 27%
UV Index: 4
Wind: 9 mph
4 PM
Cloudy Weather
43°
Feels Like 43°
0
Humidity: 28%
UV Index: 3
Wind: 9 mph
5 PM
Cloudy Weather
45°
Feels Like 43°
0
Humidity: 30%
UV Index: 2
Wind: 9 mph
6 PM
Cloudy Weather
43°
Feels Like 39°
0
Humidity: 35%
UV Index: 1
Wind: 8 mph
7 PM
Cloudy Weather
41°
Feels Like 36°
1
Humidity: 41%
UV Index: 0
Wind: 8 mph
8 PM
Cloudy Weather
39°
Feels Like 32°
3
Humidity: 48%
UV Index: 0
Wind: 8 mph
9 PM
Cloudy Weather
36°
Feels Like 28°
3
Humidity: 53%
UV Index: 0
Wind: 9 mph
10 PM
Cloudy Weather
36°
Feels Like 27°
2
Humidity: 56%
UV Index: 0
Wind: 10 mph
11 PM
Cloudy Weather
34°
Feels Like 27°
1
Humidity: 56%
UV Index: 0
Wind: 10 mph

Hourly Air Quality Forecast - AQI (US EPA)

9 AM
42 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.58 µg/m³
  • PM10: 0.81 µg/m³
  • O3: 0.045 ppm
  • NO2: 1.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

10 AM
42 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.67 µg/m³
  • PM10: 0.92 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.83 µg/m³
  • PM10: 1.06 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.7 ppb
  • SO2: 0.2 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.19 µg/m³
  • PM10: 1.42 µg/m³
  • O3: 0.050 ppm
  • NO2: 0.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.13 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: 1.87 µg/m³
  • PM10: 2.13 µg/m³
  • O3: 0.052 ppm
  • NO2: 0.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.36 µg/m³
  • PM10: 2.63 µg/m³
  • O3: 0.055 ppm
  • NO2: 0.4 ppb
  • SO2: 0.1 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.

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

Pollutant Concentrations:

  • PM2.5: 2.82 µg/m³
  • PM10: 3.1 µg/m³
  • O3: 0.057 ppm
  • NO2: 0.3 ppb
  • SO2: 0.2 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.

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

Pollutant Concentrations:

  • PM2.5: 3.81 µg/m³
  • PM10: 4.14 µg/m³
  • O3: 0.059 ppm
  • NO2: 0.4 ppb
  • SO2: 0.2 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.

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

Pollutant Concentrations:

  • PM2.5: 5.23 µg/m³
  • PM10: 5.64 µg/m³
  • O3: 0.061 ppm
  • NO2: 0.5 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.

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

Pollutant Concentrations:

  • PM2.5: 6.76 µg/m³
  • PM10: 7.26 µg/m³
  • O3: 0.062 ppm
  • NO2: 0.7 ppb
  • SO2: 0.4 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.

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

Pollutant Concentrations:

  • PM2.5: 8.13 µg/m³
  • PM10: 8.72 µg/m³
  • O3: 0.061 ppm
  • NO2: 1 ppb
  • SO2: 0.6 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.

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

Pollutant Concentrations:

  • PM2.5: 9.24 µg/m³
  • PM10: 9.91 µg/m³
  • O3: 0.061 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.

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

Pollutant Concentrations:

  • PM2.5: 9.93 µg/m³
  • PM10: 10.66 µg/m³
  • O3: 0.060 ppm
  • NO2: 1.5 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.

10 PM
62 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 10.03 µg/m³
  • PM10: 10.81 µg/m³
  • O3: 0.058 ppm
  • NO2: 1.7 ppb
  • SO2: 1 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.

11 PM
52 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 9.66 µg/m³
  • PM10: 10.46 µg/m³
  • O3: 0.055 ppm
  • NO2: 2 ppb
  • SO2: 1 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.