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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 |  Miles City | 52 |
| 2 | Broadus | 50 |
| 3 | West Glendive | 38 |
| 4 | Columbia Falls | 35 |
| 5 | Libby | 34 |
| 6 | Winnett | 34 |
| 7 | Great Falls | 32 |
| 8 | Frenchtown | 30 |
| 9 | Stevensville | 30 |
| 10 | Hot Springs | 29 |
(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 | Absarokee | 0 |
| 2 | Columbus | 0 |
| 3 | Wisdom | 0 |
| 4 | Livingston | 1 |
| 5 | Billings | 2 |
| 6 | Red Lodge | 2 |
| 7 | West Yellowstone | 2 |
| 8 | Big Timber | 5 |
| 9 | Bozeman | 5 |
| 10 | Hardin | 5 |
(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
118Contributors
- USA National Park Service
5 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
- 113 Anonymous contributors
113 stations
113 Anonymous Contributors
Which is the most polluted city in Montana?
- Miles City 52
- Broadus 50
- Terry 45
- Glendive 43
- Wibaux 42
- Ekalaka 39
- West Glendive 38
- Baker 37
- Colstrip 36
- Birney 35
- Columbia Falls 35
- Forsyth 35
- Lame Deer 35
- Libby 34
- Winnett 34
- Great Falls 32
- Hysham 31
- Sidney 31
- Frenchtown 30
- Stevensville 30
- Hot Springs 29
- Kalispell 29
- Circle 27
- Jordan 26
- Lewistown 26
- Choteau 25
- Conrad 25
- Malta 25
- Shelby 25
- Sun Prairie 25
- Charlo 24
- Fort Benton 24
- Malmstrom Air Force Base 24
- Polson 24
- Whitefish 24
- Cut Bank 23
- Ronan 23
- Bigfork 22
- Clinton 22
- Chester 21
- Chinook 21
- Glasgow 21
- Lincoln 21
- North Browning 21
- Bonner-West Riverside 20
- East Helena 20
- Evergreen 20
- Fort Belknap Agency 20
- South Browning 20
- West Glacier 20
- Dayton 19
- Havre 19
- Lakeside 19
- Somers 19
- Browning 18
- Eureka 18
- Lambert 18
- Wolf Point 18
- Roundup 17
- Superior 17
- Thompson Falls 17
- Helena Valley Northwest 16
- Pablo 16
- Helena Valley Northeast 15
- Lockwood 15
- Noxon 15
- Scobey 15
- Seeley Lake 15
- Arlee 14
- Butte 14
- Helena 14
- Helena West Side 14
- Ravalli 14
- Helena Valley Southeast 13
- Plentywood 13
- Lolo 12
- Missoula 12
- Stanford 12
- Montana City 11
- Plains 11
- Crow Agency 10
- Clancy 9
- East Missoula 9
- Hamilton 9
- Orchard Homes 9
- Belgrade 8
- Deer Lodge 8
- Dillon 8
- Laurel 8
- Big Sky 7
- Boulder 7
- Anaconda 6
- Ryegate 6
- Big Timber 5
- Bozeman 5
- Butte-Silver Bow (Balance) 5
- Four Corners 5
- Hardin 5
- Harlowton 5
- Helena Valley West Central 5
- Manhattan 5
- Philipsburg 5
- Three Forks 5
- Townsend 5
- Virginia City 5
- Warm Springs 5
- White Sulphur Springs 5
- Whitehall 5
- Billings 2
- Red Lodge 2
- West Yellowstone 2
- Livingston 1
- Absarokee 0
- Columbus 0
- Wisdom 0
AQI US, Metric