Worst air pollution Dubuque, today and tomorrow
Today (16 July): Air quality in Dubuque is fair. AQI, PM2.5, NO2, and O3 are fair; PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:00 PM (O3: 36.3/100).
Tomorrow (17 July 2026): Air quality in Dubuque is fair. PM2.5 decreases to good; all other pollutants stay as today. Pollution peaks around 12:00 PM (O3: 38.8/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Dubuque's air quality reflects the Mississippi River valley's bluff-lined topography in eastern Iowa, with vehicle emissions from US-20 and the surrounding manufacturing and agricultural processing industry contributing local sources. The Mississippi River valley's partial topographic enclosure between the limestone bluffs creates modest concentration under calm conditions, while prevailing westerly Iowa prairie winds provide the primary ventilation and summer regional ozone from the Midwest airshed is the primary warm-season concern.
Today - 16 July | Pollution peaks at 12:00
AQI:
Fair
36.3/100
PM2.5 (fine particles):
Fair
22.0/100
PM10 (coarse particles):
Good
17.8/100
NO2 (nitrogen dioxide):
Fair
31.7/100
O3 (ozone):
Fair
36.3/100
SO2 (sulfur dioxide):
Good
5.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.4/100
PM1 (ultrafine particles):
Good
10.0/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 12:00
AQI:
Fair
38.8/100
PM2.5 (fine particles):
Good
18.4/100
PM10 (coarse particles):
Good
14.9/100
NO2 (nitrogen dioxide):
Fair
33.5/100
O3 (ozone):
Fair
38.8/100
SO2 (sulfur dioxide):
Good
6.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
8.0/100
PM1 (ultrafine particles):
Good
10.9/100
Pollen forecast in Dubuque
View pollen forecastFrequently Asked Questions
Is air quality bad in Dubuque right now?
On 16 July 2026, overall air quality in Dubuque is fair. AQI is the main air quality indicator at 36.3/100. Pollution peaks around 12:00 PM (O3: 36.3/100).
Will air quality be worse tomorrow in Dubuque?
On 17 July 2026, air quality conditions in Dubuque will be similar to today, with AQI forecast at fair at 38.8/100. Pollution peaks around 12:00 PM (O3: 38.8/100).
When is air pollution at its worst in Dubuque?
Conditions in Dubuque vary noticeably across the seasons, as the calmest air usually arrives in winter, between planting and harvest dust events; by contrast, summer heat and humidity drive ozone formation, and agricultural dust can spike particulate levels during planting and harvest. Wide-open terrain generally helps disperse pollution quickly once the wind picks up.
Are air quality levels in Dubuque based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app