Hourly Weather | Today Wednesday, March 18, 2026
Dubuque, Iowa
9 AM
Cloudy Weather
27°
Feels Like 18°
0
Frost Risk: 86%
Humidity: 95%
UV Index: 1
Wind: 10 mph
10 AM
Cloudy Weather
28°
Feels Like 21°
0
Humidity: 90%
UV Index: 1
Wind: 10 mph
11 AM
Cloudy Weather
30°
Feels Like 27°
0
Humidity: 85%
UV Index: 2
Wind: 9 mph
12 PM
Cloudy Weather
34°
Feels Like 34°
0
Humidity: 82%
UV Index: 4
Wind: 9 mph
1 PM
Cloudy Weather
36°
Feels Like 36°
0
Humidity: 80%
UV Index: 4
Wind: 8 mph
2 PM
Cloudy Weather
37°
Feels Like 39°
0
Humidity: 78%
UV Index: 4
Wind: 8 mph
3 PM
Cloudy Weather
39°
Feels Like 39°
0
Humidity: 78%
UV Index: 3
Wind: 9 mph
4 PM
Cloudy Weather
43°
Feels Like 39°
0
Humidity: 77%
UV Index: 2
Wind: 8 mph
5 PM
Cloudy Weather
39°
Feels Like 37°
0
Humidity: 82%
UV Index: 1
Wind: 8 mph
6 PM
Cloudy Weather
39°
Feels Like 37°
0
Humidity: 85%
UV Index: 1
Wind: 7 mph
7 PM
Cloudy Weather
37°
Feels Like 36°
0
Humidity: 90%
UV Index: 0
Wind: 6 mph
8 PM
Cloudy Night
37°
Feels Like 36°
3
Humidity: 90%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Night
36°
Feels Like 34°
3
Humidity: 92%
UV Index: 0
Wind: 5 mph
10 PM
Cloudy Night
34°
Feels Like 34°
3
Humidity: 96%
UV Index: 0
Wind: 5 mph
11 PM
Cloudy Night
34°
Feels Like 32°
3
Humidity: 100%
UV Index: 0
Wind: 5 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 7.73 µg/m³
  • PM10: 8.39 µg/m³
  • O3: 0.040 ppm
  • NO2: 3.4 ppb
  • SO2: 0.8 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.79 µg/m³
  • PM10: 8.58 µg/m³
  • O3: 0.039 ppm
  • NO2: 3 ppb
  • SO2: 0.7 ppb
  • CO: 0.17 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: O3
Details

Pollutant Concentrations:

  • PM2.5: 8.63 µg/m³
  • PM10: 9.6 µg/m³
  • O3: 0.040 ppm
  • NO2: 2.6 ppb
  • SO2: 0.5 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 10.7 µg/m³
  • PM10: 11.87 µg/m³
  • O3: 0.041 ppm
  • NO2: 2.5 ppb
  • SO2: 0.5 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

1 PM
55 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 14.12 µg/m³
  • PM10: 15.5 µg/m³
  • O3: 0.045 ppm
  • NO2: 2.4 ppb
  • SO2: 0.5 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

2 PM
64 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 18.32 µg/m³
  • PM10: 19.91 µg/m³
  • O3: 0.050 ppm
  • NO2: 2.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

3 PM
70 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 21.51 µg/m³
  • PM10: 23.21 µg/m³
  • O3: 0.055 ppm
  • NO2: 2.7 ppb
  • SO2: 0.4 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

4 PM
74 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 23.1 µg/m³
  • PM10: 24.83 µg/m³
  • O3: 0.058 ppm
  • NO2: 3 ppb
  • SO2: 0.4 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

5 PM
75 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 23.58 µg/m³
  • PM10: 25.35 µg/m³
  • O3: 0.059 ppm
  • NO2: 3.7 ppb
  • SO2: 0.4 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

6 PM
73 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 22.85 µg/m³
  • PM10: 24.63 µg/m³
  • O3: 0.056 ppm
  • NO2: 5.1 ppb
  • SO2: 0.3 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

7 PM
71 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 21.64 µg/m³
  • PM10: 23.37 µg/m³
  • O3: 0.051 ppm
  • NO2: 6.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.22 ppm

Health Recommendations:

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

8 PM
68 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 20.36 µg/m³
  • PM10: 22 µg/m³
  • O3: 0.046 ppm
  • NO2: 6.6 ppb
  • SO2: 0.2 ppb
  • CO: 0.23 ppm

Health Recommendations:

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

9 PM
65 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 19.17 µg/m³
  • PM10: 20.67 µg/m³
  • O3: 0.044 ppm
  • NO2: 5.8 ppb
  • SO2: 0.2 ppb
  • CO: 0.22 ppm

Health Recommendations:

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

10 PM
63 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 18.03 µg/m³
  • PM10: 19.31 µg/m³
  • O3: 0.045 ppm
  • NO2: 4.7 ppb
  • SO2: 0.2 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

11 PM
60 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 16.68 µg/m³
  • PM10: 17.8 µg/m³
  • O3: 0.045 ppm
  • NO2: 3.8 ppb
  • SO2: 0.2 ppb
  • CO: 0.20 ppm

Health Recommendations:

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