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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 | Bonner-West Riverside | 67 |
| 2 | Great Falls | 45 |
| 3 | West Glacier | 36 |
| 4 | Broadus | 33 |
| 5 | Lambert | 33 |
| 6 | East Helena | 32 |
| 7 | Columbus | 27 |
| 8 | Helena | 26 |
| 9 | Kalispell | 25 |
| 10 | Absarokee | 24 |
(local time)
SEE WORLD AQI RANKINGAIR QUALITY DATA CONTRIBUTORS
116 Contributors
See all
LIVE AQI CITY RANKING
Real-time Montana
Cleanest city ranking
| # | city | US AQI |
|---|---|---|
| 1 | West Yellowstone | 2 |
| 2 | Red Lodge | 4 |
| 3 | Wisdom | 4 |
| 4 | Lewistown | 9 |
| 5 | Livingston | 12 |
| 6 | Lolo | 12 |
| 7 | Seeley Lake | 12 |
| 8 | West Glendive | 12 |
| 9 | Cut Bank | 13 |
| 10 | Lincoln | 13 |
(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
116Contributors
- USA National Park Service
4 stations
- 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
- 111 Anonymous contributors
111 stations
111 Anonymous Contributors
Which is the most polluted city in Montana?
- Great Falls 43
- Bonner-West Riverside 34
- West Glacier 34
- Broadus 33
- East Helena 33
- Missoula 32
- Columbus 29
- Lambert 29
- Frenchtown 26
- Helena 25
- Kalispell 24
- Whitefish 24
- Absarokee 23
- Crow Agency 23
- Fort Benton 23
- Columbia Falls 22
- Conrad 22
- Malmstrom Air Force Base 22
- Sun Prairie 22
- Clancy 21
- Eureka 21
- Helena Valley Northeast 21
- Helena Valley Northwest 21
- Helena Valley Southeast 21
- Helena West Side 21
- Montana City 21
- Shelby 21
- Stanford 21
- Townsend 21
- White Sulphur Springs 21
- Big Timber 20
- Birney 20
- Boulder 20
- Butte 20
- Colstrip 20
- Cut Bank 20
- Hysham 20
- Lame Deer 20
- Roundup 20
- Billings 19
- Bozeman 19
- Evergreen 19
- Harlowton 19
- Helena Valley West Central 19
- Lockwood 19
- Ryegate 19
- Somers 19
- South Browning 19
- Thompson Falls 19
- Winnett 19
- Clinton 18
- Dayton 18
- Forsyth 18
- Hot Springs 18
- Lakeside 18
- Manhattan 18
- Pablo 18
- Three Forks 18
- Belgrade 17
- Browning 17
- Charlo 17
- Chinook 17
- Deer Lodge 17
- Dillon 17
- Hardin 17
- Havre 17
- Libby 17
- Stevensville 17
- Virginia City 17
- Bigfork 16
- Laurel 16
- Whitehall 16
- Big Sky 15
- Chester 15
- Choteau 15
- Fort Belknap Agency 15
- Hamilton 15
- Livingston 15
- Ravalli 15
- Ronan 15
- Superior 15
- Arlee 14
- Lincoln 14
- Noxon 14
- Plains 14
- Polson 14
- Seeley Lake 14
- West Glendive 14
- Miles City 13
- North Browning 13
- Warm Springs 13
- Butte-Silver Bow (Balance) 12
- East Missoula 12
- Four Corners 12
- Jordan 12
- Lolo 12
- Orchard Homes 12
- Red Lodge 12
- Philipsburg 11
- Ekalaka 9
- Lewistown 7
- Terry 7
- Baker 5
- Circle 4
- Glasgow 4
- Glendive 4
- Malta 4
- Plentywood 4
- Scobey 4
- Sidney 4
- Wibaux 4
- Wisdom 4
- Wolf Point 4
- West Yellowstone 2
- Anaconda 0
AQI US, Metric