Worst air pollution St. Cloud, today and tomorrow
Today (16 July): Air quality in St. Cloud is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 6:00 AM (O3: 36.7/100).
Tomorrow (17 July 2026): Air quality in St. Cloud is fair. All pollutants stay as today. Pollution peaks around 7:00 AM (O3: 30.9/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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St. Cloud's air quality benefits from the flat Minnesota prairie providing generally good wind dispersal, with vehicle emissions from US-10 and surrounding manufacturing and healthcare operations contributing local sources in this mid-sized central Minnesota university city. Summer regional ozone from agricultural and industrial sources across the broader Upper Midwest airshed can elevate warm-season readings.
Today - 16 July | Pollution peaks at 06:00
AQI:
Fair
36.7/100
PM2.5 (fine particles):
Good
4.7/100
PM10 (coarse particles):
Good
1.8/100
NO2 (nitrogen dioxide):
Good
1.4/100
O3 (ozone):
Fair
36.7/100
SO2 (sulfur dioxide):
Good
0.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.0/100
PM1 (ultrafine particles):
Good
4.4/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 07:00
AQI:
Fair
30.9/100
PM2.5 (fine particles):
Good
6.2/100
PM10 (coarse particles):
Good
2.3/100
NO2 (nitrogen dioxide):
Good
1.7/100
O3 (ozone):
Fair
30.9/100
SO2 (sulfur dioxide):
Good
0.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.9/100
PM1 (ultrafine particles):
Good
5.4/100
Pollen forecast in St. Cloud
View pollen forecastFrequently Asked Questions
Is air quality bad in St. Cloud right now?
On 16 July 2026, overall air quality in St. Cloud is fair. AQI is the main air quality indicator at 36.7/100. Pollution peaks around 6:00 AM (O3: 36.7/100).
Will air quality be worse tomorrow in St. Cloud?
On 17 July 2026, air quality conditions in St. Cloud will be similar to today, with AQI forecast at fair at 30.9/100. Pollution peaks around 7:00 AM (O3: 30.9/100).
When is air pollution at its worst in St. Cloud?
St. Cloud follows a fairly predictable seasonal air quality pattern: winter generally brings the cleanest air, aside from brief inversion episodes during calm cold spells, but summer heat waves and the dust of planting and harvest seasons are the main annual concerns. Wide-open terrain generally helps disperse pollution quickly once the wind picks up.
Are air quality levels in St. Cloud 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