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Air quality in Montana
Air quality index (AQI) and PM2.5 air pollution in Montana
LIVE AQI CITY RANKING
Real-time Montana
Most polluted city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Great Falls | 38 |
| 2 | West Glacier | 30 |
| 3 | Lambert | 28 |
| 4 | Stevensville | 26 |
| 5 | East Helena | 25 |
| 6 | Virginia City | 25 |
| 7 | Arlee | 23 |
| 8 | Livingston | 20 |
| 9 | Red Lodge | 20 |
| 10 | Absarokee | 18 |
(local time)
SEE WORLD AQI RANKINGAIR QUALITY DATA CONTRIBUTORS
115 Contributors
See all
LIVE AQI CITY RANKING
Real-time Montana
Cleanest city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Chester | 1 |
| 2 | Crow Agency | 1 |
| 3 | Dillon | 1 |
| 4 | Lincoln | 2 |
| 5 | Browning | 6 |
| 6 | Whitefish | 6 |
| 7 | Hardin | 7 |
| 8 | Ravalli | 7 |
| 9 | West Glendive | 7 |
| 10 | Bigfork | 8 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
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The latest air quality news and resources.
Montana air quality data attribution
115Contributors
- Montana Department of Environmental Quality
3 stations
- USA National Park Service
4 stations
2 Government Contributors
- Nyet
1 station
- Abi D.
1 station
- Crosscut Mountain Sports Center
1 station
3 Individual Contributors
- 110 Anonymous contributors
110 stations
110 Anonymous Contributors
Which is the most polluted city in Montana?
- Great Falls 38
- West Glacier 30
- Lambert 28
- Stevensville 26
- East Helena 25
- Virginia City 25
- Arlee 23
- Livingston 20
- Red Lodge 20
- Absarokee 18
- Billings 18
- Seeley Lake 18
- Big Timber 17
- Helena 17
- Clinton 16
- Columbus 16
- Belgrade 15
- Broadus 15
- Hot Springs 15
- Malta 15
- Scobey 15
- Anaconda 14
- Bozeman 14
- Choteau 14
- Noxon 14
- Plentywood 14
- Thompson Falls 14
- Charlo 13
- Helena Valley West Central 13
- Libby 13
- Sidney 13
- Eureka 12
- Havre 12
- Miles City 12
- West Yellowstone 12
- Wisdom 12
- Cut Bank 11
- Frenchtown 11
- Glasgow 11
- Kalispell 11
- Ronan 11
- Butte 10
- Columbia Falls 10
- Lewistown 10
- Malmstrom Air Force Base 10
- Pablo 10
- Plains 10
- Sun Prairie 10
- Wolf Point 10
- Big Sky 9
- Bonner-West Riverside 9
- Circle 9
- Fort Benton 9
- Missoula 9
- Stanford 9
- Bigfork 8
- Four Corners 8
- Glendive 8
- Hamilton 8
- Harlowton 8
- Lolo 8
- Manhattan 8
- North Browning 8
- Polson 8
- Terry 8
- White Sulphur Springs 8
- Baker 7
- Birney 7
- Clancy 7
- Colstrip 7
- Conrad 7
- Forsyth 7
- Hardin 7
- Helena Valley Northeast 7
- Helena Valley Northwest 7
- Helena Valley Southeast 7
- Helena West Side 7
- Lame Deer 7
- Montana City 7
- Ravalli 7
- Roundup 7
- Ryegate 7
- Shelby 7
- Superior 7
- Three Forks 7
- Townsend 7
- West Glendive 7
- Wibaux 7
- Winnett 7
- Boulder 6
- Browning 6
- Dayton 6
- Deer Lodge 6
- Evergreen 6
- Fort Belknap Agency 6
- Hysham 6
- Jordan 6
- Lakeside 6
- Laurel 6
- Lockwood 6
- Somers 6
- Whitefish 6
- Whitehall 6
- Butte-Silver Bow (Balance) 5
- Chinook 5
- East Missoula 5
- Ekalaka 5
- Orchard Homes 5
- Philipsburg 5
- South Browning 5
- Warm Springs 5
- Lincoln 2
- Chester 1
- Crow Agency 1
- Dillon 1
AQI US, Metric