Worst air pollution Bozeman, today and tomorrow
Today (16 July): Air quality in Bozeman is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 5:00 AM (O3: 36.7/100).
Tomorrow (17 July 2026): Air quality in Bozeman is fair. All pollutants stay as today. Pollution peaks around 11:00 PM (NO2: 38.4/100). 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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Bozeman's air quality reflects the Gallatin Valley's partial topographic enclosure between the Bridger Range and Gallatin Range in Montana, with vehicle emissions from US-191 and the surrounding Montana State University campus and rapidly growing technology and outdoor recreation economy contributing local sources. Winter temperature inversions can trap wood-burning and vehicle emissions in the valley, while summer wildfire smoke from surrounding Montana and Wyoming forests is an increasingly severe seasonal concern.
Today - 16 July | Pollution peaks at 05:00
AQI:
Fair
36.7/100
PM2.5 (fine particles):
Good
8.8/100
PM10 (coarse particles):
Good
3.4/100
NO2 (nitrogen dioxide):
Fair
23.1/100
O3 (ozone):
Fair
36.7/100
SO2 (sulfur dioxide):
Good
4.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.0/100
PM1 (ultrafine particles):
Good
8.2/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 23:00
AQI:
Fair
38.4/100
PM2.5 (fine particles):
Good
12.2/100
PM10 (coarse particles):
Good
4.4/100
NO2 (nitrogen dioxide):
Fair
38.4/100
O3 (ozone):
Fair
30.9/100
SO2 (sulfur dioxide):
Good
3.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.9/100
PM1 (ultrafine particles):
Good
10.8/100
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Frequently Asked Questions
Is air quality bad in Bozeman right now?
On 16 July 2026, overall air quality in Bozeman is fair. AQI is the main air quality indicator at 36.7/100. Pollution peaks around 5:00 AM (O3: 36.7/100).
Will air quality be worse tomorrow in Bozeman?
On 17 July 2026, air quality conditions in Bozeman will be similar to today, with AQI forecast at fair at 38.4/100. Pollution peaks around 11:00 PM (NO2: 38.4/100).
When is air pollution at its worst in Bozeman?
Like most US cities, Bozeman sees air quality shift from season to season, as autumn is often the cleanest stretch, between wildfire season and the onset of winter inversions; by contrast, valley and basin locations can see pollution trapped under cold air for days during winter inversions. Valley and basin locations are especially prone to these winter inversion episodes compared to more exposed, higher terrain.
Are air quality levels in Bozeman 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