Hourly Weather | Today Tuesday, September 1, 2026
Green Bay, Wisconsin
11 AM
Foggy Weather
81°
Feels Like 90°
40
Humidity: 79%
UV Index: 1
Wind: 5 mph
12 PM
Foggy Weather
82°
Feels Like 91°
34
Humidity: 72%
UV Index: 1
Wind: 5 mph
1 PM
Foggy Weather
84°
Feels Like 93°
29
Humidity: 69%
UV Index: 2
Wind: 5 mph
2 PM
Cloudy Weather
86°
Feels Like 97°
20
Humidity: 65%
UV Index: 4
Wind: 6 mph
3 PM
Cloudy Weather
86°
Feels Like 93°
20
Humidity: 64%
UV Index: 2
Wind: 7 mph
4 PM
Cloudy Weather
88°
Feels Like 95°
20
Humidity: 58%
UV Index: 3
Wind: 7 mph
5 PM
Cloudy Weather
86°
Feels Like 91°
20
Humidity: 60%
UV Index: 2
Wind: 7 mph
6 PM
Cloudy Weather
84°
Feels Like 90°
20
Humidity: 65%
UV Index: 1
Wind: 6 mph
7 PM
Cloudy Weather
82°
Feels Like 88°
19
Humidity: 72%
UV Index: 0
Wind: 5 mph
8 PM
Cloudy Night
79°
Feels Like 82°
17
Humidity: 77%
UV Index: 0
Wind: 5 mph
9 PM
Cloudy Night
75°
Feels Like 79°
17
Humidity: 83%
UV Index: 0
Wind: 5 mph
10 PM
Cloudy Night
72°
Feels Like 75°
22
Humidity: 91%
UV Index: 0
Wind: 5 mph
11 PM
Stormy Weather
72°
Feels Like 72°
54
Humidity: 92%
UV Index: 0
Wind: 5 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 9.95 µg/m³
  • PM10: 10.65 µg/m³
  • O3: 0.020 ppm
  • NO2: 2 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
41 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.93 µg/m³
  • PM10: 10.63 µg/m³
  • O3: 0.026 ppm
  • NO2: 1.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 10.16 µg/m³
  • PM10: 10.85 µg/m³
  • O3: 0.031 ppm
  • NO2: 1.1 ppb
  • SO2: 0.4 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 10.07 µg/m³
  • PM10: 10.68 µg/m³
  • O3: 0.039 ppm
  • NO2: 0.7 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

3 PM
40 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.69 µg/m³
  • PM10: 10.23 µg/m³
  • O3: 0.041 ppm
  • NO2: 0.7 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

4 PM
40 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.65 µg/m³
  • PM10: 10.16 µg/m³
  • O3: 0.041 ppm
  • NO2: 0.7 ppb
  • SO2: 0.4 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: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.74 µg/m³
  • PM10: 10.24 µg/m³
  • O3: 0.039 ppm
  • NO2: 1.1 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

6 PM
41 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.78 µg/m³
  • PM10: 10.28 µg/m³
  • O3: 0.035 ppm
  • NO2: 1.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

7 PM
40 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.56 µg/m³
  • PM10: 10.06 µg/m³
  • O3: 0.031 ppm
  • NO2: 2.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

8 PM
39 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.29 µg/m³
  • PM10: 9.82 µg/m³
  • O3: 0.025 ppm
  • NO2: 3.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

9 PM
38 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.13 µg/m³
  • PM10: 9.73 µg/m³
  • O3: 0.020 ppm
  • NO2: 3.6 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: 8.91 µg/m³
  • PM10: 9.58 µg/m³
  • O3: 0.016 ppm
  • NO2: 3.7 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 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: 8.65 µg/m³
  • PM10: 9.33 µg/m³
  • O3: 0.013 ppm
  • NO2: 3.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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