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Air quality in Montana
Air quality index (AQI) and PM2.5 air pollution in Montana
AIR QUALITY DATA CONTRIBUTORS
115 Contributors
See all
LIVE AQI CITY RANKING
Real-time Montana
Cleanest city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Havre | 3 |
| 2 | Lolo | 3 |
| 3 | Malta | 4 |
| 4 | Bonner-West Riverside | 5 |
| 5 | Dillon | 7 |
| 6 | Hardin | 7 |
| 7 | Ravalli | 7 |
| 8 | West Glacier | 7 |
| 9 | West Yellowstone | 7 |
| 10 | Billings | 8 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
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News
The latest air quality news and resources.
Montana air quality data attribution
115Contributors
- Montana Department of Environmental Quality
3 stations
Government Contributor
- Nyet
1 station
- Abi D.
1 station
- Crosscut Mountain Sports Center
1 station
3 Individual Contributors
- 111 Anonymous contributors
111 stations
111 Anonymous Contributors
4 Data sources
Which is the most polluted city in Montana?
- Great Falls 38
- Sidney 37
- Wibaux 36
- Broadus 35
- Noxon 34
- Glendive 33
- West Glendive 33
- Belgrade 32
- Colstrip 32
- Forsyth 32
- Hysham 32
- Lambert 32
- Lame Deer 32
- Plentywood 31
- Circle 30
- Terry 29
- Baker 28
- Libby 28
- Townsend 28
- Winnett 28
- Absarokee 27
- Birney 27
- Helena Valley Northeast 27
- Lockwood 27
- South Browning 27
- Evergreen 26
- Helena Valley Northwest 26
- Helena Valley Southeast 26
- White Sulphur Springs 26
- Wolf Point 26
- Lakeside 25
- Laurel 25
- Somers 25
- Conrad 24
- Dayton 24
- Helena West Side 24
- Malmstrom Air Force Base 24
- Montana City 24
- Shelby 24
- Sun Prairie 24
- Virginia City 24
- Boulder 23
- Clancy 23
- Cut Bank 23
- Fort Benton 23
- Jordan 23
- Manhattan 23
- Scobey 23
- Stanford 23
- Three Forks 23
- Harlowton 22
- Whitehall 22
- Four Corners 21
- Hot Springs 21
- Roundup 21
- Ryegate 21
- Superior 21
- Thompson Falls 21
- Bozeman 20
- Butte 20
- Kalispell 20
- Charlo 19
- Ekalaka 19
- Glasgow 19
- Browning 18
- Butte-Silver Bow (Balance) 18
- Deer Lodge 18
- East Missoula 18
- Orchard Homes 18
- Ronan 18
- Warm Springs 18
- Helena 17
- Philipsburg 17
- Big Timber 15
- Chinook 15
- Columbia Falls 15
- East Helena 15
- Miles City 15
- North Browning 15
- Pablo 15
- Choteau 14
- Fort Belknap Agency 14
- Lewistown 14
- Chester 13
- Clinton 13
- Eureka 13
- Missoula 13
- Stevensville 13
- Anaconda 12
- Lincoln 12
- Plains 12
- Big Sky 11
- Seeley Lake 11
- Whitefish 11
- Frenchtown 10
- Livingston 10
- Polson 10
- Red Lodge 10
- Arlee 9
- Bigfork 9
- Columbus 9
- Billings 8
- Crow Agency 8
- Hamilton 8
- Helena Valley West Central 8
- Dillon 7
- Hardin 7
- Ravalli 7
- West Glacier 7
- West Yellowstone 7
- Bonner-West Riverside 5
- Wisdom 5
- Malta 4
- Havre 3
- Lolo 3
AQI US, Metric