Highest air pollution Sioux Falls, today and tomorrow
Today (29 June): Air quality in Sioux Falls 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: 22.7/100).
Tomorrow (30 June 2026): Air quality in Sioux Falls is fair. All pollutants stay as today. Pollution peaks around 8:00 AM (O3: 24.2/100). 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
Sioux Falls' air quality benefits from the flat Great Plains terrain providing excellent natural wind dispersal in South Dakota, with prevailing northwesterly and southerly Great Plains winds generally keeping readings at low to moderate levels year-round. Vehicle emissions from I-29 and I-90 are the primary local sources, while agricultural ammonia from the surrounding South Dakota corn, soy, and livestock operations contributes secondary particulate formation, making Sioux Falls one of the US's cleaner major metropolitan air quality environments.
Today - 29 June | Pollution peaks at 10:00
AQI:
Fair
22.7/100
PM2.5 (fine particles):
Good
6.6/100
PM10 (coarse particles):
Good
2.8/100
NO2 (nitrogen dioxide):
Good
11.4/100
O3 (ozone):
Fair
22.7/100
SO2 (sulfur dioxide):
Good
0.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.8/100
PM1 (ultrafine particles):
Good
4.9/100
Levels show the poorest local air quality during the day
Tomorrow - 30 June | Pollution peaks at 08:00
AQI:
Fair
24.2/100
PM2.5 (fine particles):
Good
10.5/100
PM10 (coarse particles):
Good
4.0/100
NO2 (nitrogen dioxide):
Good
9.8/100
O3 (ozone):
Fair
24.2/100
SO2 (sulfur dioxide):
Good
1.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.3/100
PM1 (ultrafine particles):
Good
5.5/100
Pollen forecast in Sioux Falls
View pollen forecastFrequently Asked Questions
Is air quality bad in Sioux Falls right now?
On 29 June 2026, overall air quality in Sioux Falls is fair. AQI is the main air quality indicator at 22.7/100. Pollution peaks around 10:00 AM (O3: 22.7/100).
Will air quality be worse tomorrow in Sioux Falls?
On 30 June 2026, air quality conditions in Sioux Falls will be similar to today, with AQI forecast at fair at 24.2/100. Pollution peaks around 8:00 AM (O3: 24.2/100).
Are air quality levels in Sioux Falls 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: 30 June 2026 at 01:02 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