Hourly Weather | Today Thursday, February 26, 2026
Green Bay, Wisconsin
1 AM
Cloudy Night
16°
Feels Like 12°
0
Frost Risk: 100%
Humidity: 66%
UV Index: 0
Wind: 5 mph
2 AM
Cloudy Night
14°
Feels Like 14°
0
Frost Risk: 100%
Humidity: 69%
UV Index: 0
Wind: 4 mph
3 AM
Cloudy Night
12°
Feels Like 12°
0
Frost Risk: 100%
Humidity: 76%
UV Index: 0
Wind: 5 mph
4 AM
Cloudy Night
12°
Feels Like 10°
0
Frost Risk: 100%
Humidity: 71%
UV Index: 0
Wind: 5 mph
5 AM
Cloudy Night
14°
Feels Like 10°
0
Frost Risk: 100%
Humidity: 68%
UV Index: 0
Wind: 5 mph
6 AM
Cloudy Night
14°
Feels Like 10°
0
Frost Risk: 100%
Humidity: 68%
UV Index: 0
Wind: 6 mph
7 AM
Cloudy Weather
14°
Feels Like 10°
24
Frost Risk: 100%
Humidity: 69%
UV Index: 0
Wind: 6 mph
8 AM
Cloudy Weather
16°
Feels Like 10°
24
Frost Risk: 100%
Humidity: 66%
UV Index: 0
Wind: 7 mph
9 AM
Cloudy Weather
21°
Feels Like 16°
29
Humidity: 58%
UV Index: 1
Wind: 8 mph
10 AM
Snowy Weather
25°
Feels Like 16°
65
Humidity: 55%
UV Index: 1
Wind: 8 mph
11 AM
Snowy Weather
27°
Feels Like 19°
65
Humidity: 53%
UV Index: 1
Wind: 9 mph
12 PM
Snowy Weather
30°
Feels Like 21°
65
Humidity: 51%
UV Index: 1
Wind: 9 mph
1 PM
Cloudy Weather
34°
Feels Like 25°
3
Humidity: 50%
UV Index: 1
Wind: 10 mph
2 PM
Cloudy Weather
36°
Feels Like 27°
0
Humidity: 50%
UV Index: 1
Wind: 12 mph
3 PM
Cloudy Weather
36°
Feels Like 28°
0
Humidity: 50%
UV Index: 1
Wind: 12 mph
4 PM
Cloudy Weather
37°
Feels Like 28°
0
Humidity: 50%
UV Index: 0
Wind: 12 mph
5 PM
Cloudy Weather
36°
Feels Like 27°
0
Humidity: 56%
UV Index: 0
Wind: 10 mph
6 PM
Cloudy Weather
34°
Feels Like 27°
0
Humidity: 65%
UV Index: 0
Wind: 10 mph
7 PM
Cloudy Night
34°
Feels Like 27°
0
Humidity: 70%
UV Index: 0
Wind: 10 mph
8 PM
Cloudy Night
34°
Feels Like 25°
0
Humidity: 73%
UV Index: 0
Wind: 10 mph
9 PM
Cloudy Night
34°
Feels Like 25°
0
Humidity: 77%
UV Index: 0
Wind: 10 mph
10 PM
Cloudy Night
34°
Feels Like 25°
0
Humidity: 79%
UV Index: 0
Wind: 9 mph
11 PM
Cloudy Night
32°
Feels Like 25°
0
Humidity: 82%
UV Index: 0
Wind: 9 mph

Hourly Air Quality Forecast - AQI (US EPA)

1 AM
34 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.36 µg/m³
  • PM10: 5.27 µg/m³
  • O3: 0.036 ppm
  • NO2: 3.7 ppb
  • SO2: 0.4 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

2 AM
31 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.85 µg/m³
  • PM10: 5.81 µg/m³
  • O3: 0.034 ppm
  • NO2: 4 ppb
  • SO2: 0.4 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

3 AM
29 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.37 µg/m³
  • PM10: 6.4 µg/m³
  • O3: 0.032 ppm
  • NO2: 4.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

4 AM
28 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.84 µg/m³
  • PM10: 6.93 µg/m³
  • O3: 0.030 ppm
  • NO2: 4.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.26 µg/m³
  • PM10: 7.37 µg/m³
  • O3: 0.029 ppm
  • NO2: 4.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

6 AM
28 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.63 µg/m³
  • PM10: 7.75 µg/m³
  • O3: 0.028 ppm
  • NO2: 4.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

7 AM
29 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.92 µg/m³
  • PM10: 8.06 µg/m³
  • O3: 0.029 ppm
  • NO2: 4.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.25 µg/m³
  • PM10: 8.46 µg/m³
  • O3: 0.028 ppm
  • NO2: 5.7 ppb
  • SO2: 0.4 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.39 µg/m³
  • PM10: 8.62 µg/m³
  • O3: 0.029 ppm
  • NO2: 6.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.82 µg/m³
  • PM10: 6.75 µg/m³
  • O3: 0.037 ppm
  • NO2: 4.7 ppb
  • SO2: 0.9 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.18 µg/m³
  • PM10: 6.02 µg/m³
  • O3: 0.039 ppm
  • NO2: 4.2 ppb
  • SO2: 1 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.77 µg/m³
  • PM10: 5.57 µg/m³
  • O3: 0.039 ppm
  • NO2: 3.8 ppb
  • SO2: 0.8 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.98 µg/m³
  • PM10: 4.64 µg/m³
  • O3: 0.042 ppm
  • NO2: 2.7 ppb
  • SO2: 0.7 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

2 PM
40 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.48 µg/m³
  • PM10: 4.06 µg/m³
  • O3: 0.044 ppm
  • NO2: 2.1 ppb
  • SO2: 0.5 ppb
  • CO: 0.15 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: 2.78 µg/m³
  • PM10: 3.27 µg/m³
  • O3: 0.045 ppm
  • NO2: 1.7 ppb
  • SO2: 0.5 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.18 µg/m³
  • PM10: 2.62 µg/m³
  • O3: 0.046 ppm
  • NO2: 1.7 ppb
  • SO2: 0.5 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

5 PM
42 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.03 µg/m³
  • PM10: 2.49 µg/m³
  • O3: 0.045 ppm
  • NO2: 2.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.15 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: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.05 µg/m³
  • PM10: 2.56 µg/m³
  • O3: 0.044 ppm
  • NO2: 3.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.27 µg/m³
  • PM10: 2.86 µg/m³
  • O3: 0.042 ppm
  • NO2: 3.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.76 µg/m³
  • PM10: 3.45 µg/m³
  • O3: 0.041 ppm
  • NO2: 4 ppb
  • SO2: 0.3 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.57 µg/m³
  • PM10: 4.37 µg/m³
  • O3: 0.040 ppm
  • NO2: 4 ppb
  • SO2: 0.4 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.62 µg/m³
  • PM10: 5.48 µg/m³
  • O3: 0.039 ppm
  • NO2: 3.8 ppb
  • SO2: 0.5 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.79 µg/m³
  • PM10: 6.67 µg/m³
  • O3: 0.038 ppm
  • NO2: 3.7 ppb
  • SO2: 0.5 ppb
  • CO: 0.17 ppm

Health Recommendations:

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