Highest air pollution Des Moines, today and tomorrow
Today (29 June): Air quality in Des Moines is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 10:00 AM (O3: 34.3/100).
Tomorrow (30 June 2026): Air quality in Des Moines is fair. All pollutants stay as today. Pollution peaks around 12:00 PM (O3: 36.9/100). 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
Des Moines' air quality benefits from the flat Iowa plains providing excellent natural wind dispersal, with prevailing westerlies from the Great Plains generally keeping readings at moderate levels. Vehicle emissions from I-235 and I-80 are the primary local sources, while agricultural ammonia and feedlot emissions from the surrounding Iowa agricultural landscape contribute to secondary particulate formation during calm summer periods.
Today - 29 June | Pollution peaks at 10:00
AQI:
Fair
34.3/100
PM2.5 (fine particles):
Good
2.6/100
PM10 (coarse particles):
Good
1.5/100
NO2 (nitrogen dioxide):
Good
7.7/100
O3 (ozone):
Fair
34.3/100
SO2 (sulfur dioxide):
Good
1.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.1/100
PM1 (ultrafine particles):
Good
2.0/100
Levels show the poorest local air quality during the day
Tomorrow - 30 June | Pollution peaks at 12:00
AQI:
Fair
36.9/100
PM2.5 (fine particles):
Good
4.2/100
PM10 (coarse particles):
Good
1.6/100
NO2 (nitrogen dioxide):
Good
8.1/100
O3 (ozone):
Fair
36.9/100
SO2 (sulfur dioxide):
Good
1.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.9/100
PM1 (ultrafine particles):
Good
2.1/100
Pollen forecast in Des Moines
View pollen forecastAir quality forecasts for neighbourhoods and landmarks in Des Moines
Frequently Asked Questions
Is air quality bad in Des Moines right now?
On 29 June 2026, overall air quality in Des Moines is fair. AQI is the main air quality indicator at 34.3/100. Pollution peaks around 10:00 AM (O3: 34.3/100).
Will air quality be worse tomorrow in Des Moines?
On 30 June 2026, air quality conditions in Des Moines will be similar to today, with AQI forecast at fair at 36.9/100. Pollution peaks around 12:00 PM (O3: 36.9/100).
Are air quality levels in Des Moines 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: 29 June 2026 at 13:39 CET (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
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team