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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 | 52 |
| 2 | East Helena | 37 |
| 3 | Hot Springs | 31 |
| 4 | Lincoln | 31 |
| 5 | Pablo | 31 |
| 6 | Wisdom | 30 |
| 7 | Butte | 29 |
| 8 | Charlo | 28 |
| 9 | Libby | 28 |
| 10 | Livingston | 28 |
(local time)
SEE WORLD AQI RANKINGAIR QUALITY DATA CONTRIBUTORS
118 Contributors
See all
LIVE AQI CITY RANKING
Real-time Montana
Cleanest city ranking
| # | city | US AQI |
|---|---|---|
| 1 | West Yellowstone | 10 |
| 2 | Lewistown | 11 |
| 3 | Miles City | 13 |
| 4 | West Glendive | 14 |
| 5 | Choteau | 16 |
| 6 | Eureka | 16 |
| 7 | Malta | 16 |
| 8 | West Glacier | 16 |
| 9 | Bigfork | 17 |
| 10 | Dillon | 17 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
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Unhealthy for sensitive groups
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The latest air quality news and resources.
Montana air quality data attribution
118Contributors
- USA National Park Service
1 station
- Montana Department of Environmental Quality
3 stations
2 Government Contributors
- Nyet
1 station
- Abi D.
1 station
- Crosscut Mountain Sports Center
1 station
3 Individual Contributors
- 113 Anonymous contributors
113 stations
113 Anonymous Contributors
Which is the most polluted city in Montana?
- Great Falls 52
- East Helena 37
- Hot Springs 31
- Lincoln 31
- Pablo 31
- Wisdom 30
- Butte 29
- Charlo 28
- Libby 28
- Livingston 28
- Townsend 28
- Ravalli 27
- Stevensville 27
- Arlee 26
- Big Sky 26
- Bonner-West Riverside 26
- Clinton 26
- Hamilton 26
- Lolo 26
- Belgrade 25
- Big Timber 25
- Cut Bank 25
- Helena 25
- Ronan 25
- Absarokee 24
- Anaconda 24
- Bozeman 24
- Columbus 24
- Frenchtown 24
- Missoula 24
- Billings 23
- Hardin 23
- Helena Valley West Central 23
- Noxon 23
- Browning 22
- Chester 22
- Crow Agency 22
- Thompson Falls 22
- Winnett 22
- Chinook 21
- Circle 21
- Havre 21
- Lambert 21
- Plains 21
- Red Lodge 21
- Broadus 20
- Columbia Falls 20
- Glasgow 20
- Kalispell 20
- Seeley Lake 20
- Whitefish 20
- Wolf Point 20
- Fort Belknap Agency 19
- Fort Benton 19
- Glendive 19
- Jordan 19
- Polson 19
- Shelby 19
- Sidney 19
- Superior 19
- Terry 19
- Wibaux 19
- Baker 18
- Conrad 18
- Dayton 18
- Evergreen 18
- Forsyth 18
- Lakeside 18
- Malmstrom Air Force Base 18
- Somers 18
- Sun Prairie 18
- Bigfork 17
- Dillon 17
- East Missoula 17
- Ekalaka 17
- Helena Valley Northeast 17
- Hysham 17
- Orchard Homes 17
- Philipsburg 17
- South Browning 17
- Boulder 16
- Butte-Silver Bow (Balance) 16
- Choteau 16
- Clancy 16
- Colstrip 16
- Deer Lodge 16
- Eureka 16
- Helena Valley Northwest 16
- Helena Valley Southeast 16
- Helena West Side 16
- Malta 16
- Manhattan 16
- Montana City 16
- Scobey 16
- Stanford 16
- Three Forks 16
- Virginia City 16
- Warm Springs 16
- West Glacier 16
- White Sulphur Springs 16
- Whitehall 16
- Four Corners 15
- Lame Deer 15
- Plentywood 15
- Harlowton 14
- Laurel 14
- Lockwood 14
- Roundup 14
- Ryegate 14
- West Glendive 14
- Birney 13
- Miles City 13
- Lewistown 11
- West Yellowstone 10
- North Browning 8
AQI US, Metric