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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 |  Lincoln | 39 |
| 2 | East Helena | 36 |
| 3 | Frenchtown | 34 |
| 4 | Hot Springs | 34 |
| 5 | Charlo | 33 |
| 6 | Livingston | 33 |
| 7 | Browning | 32 |
| 8 | Butte | 32 |
| 9 | Chester | 31 |
| 10 | Noxon | 31 |
(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 | Lewistown | 2 |
| 2 | West Yellowstone | 7 |
| 3 | Miles City | 12 |
| 4 | Libby | 15 |
| 5 | Malta | 16 |
| 6 | Lambert | 17 |
| 7 | Cut Bank | 18 |
| 8 | Seeley Lake | 18 |
| 9 | Dillon | 19 |
| 10 | Red Lodge | 21 |
(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
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?
- Lincoln 39
- East Helena 36
- Frenchtown 34
- Hot Springs 34
- Charlo 33
- Livingston 33
- Browning 32
- Butte 32
- Chester 31
- Noxon 31
- Pablo 31
- Ronan 31
- Bozeman 30
- Great Falls 30
- Hamilton 30
- Ravalli 30
- Stevensville 30
- Arlee 29
- Belgrade 29
- Clinton 29
- Kalispell 29
- Thompson Falls 29
- Townsend 29
- West Glacier 29
- Wisdom 29
- Big Sky 28
- Broadus 28
- Missoula 28
- Big Timber 27
- Helena 27
- Helena Valley West Central 27
- Bigfork 26
- Bonner-West Riverside 26
- Hardin 26
- Havre 26
- Whitefish 26
- Anaconda 25
- Billings 25
- Eureka 25
- Lolo 25
- Absarokee 24
- Columbia Falls 24
- Crow Agency 24
- Polson 24
- Winnett 24
- Columbus 23
- Choteau 22
- East Missoula 22
- Orchard Homes 22
- Plains 22
- Dayton 21
- Evergreen 21
- Lakeside 21
- Red Lodge 21
- Somers 21
- Superior 21
- Glasgow 20
- Dillon 19
- Shelby 19
- Sidney 19
- South Browning 19
- Wolf Point 19
- Chinook 18
- Circle 18
- Conrad 18
- Cut Bank 18
- Fort Belknap Agency 18
- Fort Benton 18
- Glendive 18
- Jordan 18
- Seeley Lake 18
- Virginia City 18
- Wibaux 18
- Lambert 17
- Terry 17
- Boulder 16
- Butte-Silver Bow (Balance) 16
- Clancy 16
- Deer Lodge 16
- Helena Valley Northeast 16
- Helena Valley Northwest 16
- Helena Valley Southeast 16
- Helena West Side 16
- Malta 16
- Montana City 16
- Philipsburg 16
- Scobey 16
- Warm Springs 16
- Whitehall 16
- Four Corners 15
- Libby 15
- Manhattan 15
- Sun Prairie 15
- Three Forks 15
- Baker 14
- Malmstrom Air Force Base 14
- Plentywood 14
- West Glendive 14
- White Sulphur Springs 14
- Ekalaka 12
- Harlowton 12
- Laurel 12
- Lockwood 12
- Miles City 12
- Ryegate 12
- Stanford 12
- Birney 11
- Colstrip 11
- Forsyth 11
- Hysham 11
- Lame Deer 11
- Roundup 11
- North Browning 8
- West Yellowstone 7
- Lewistown 2
AQI US, Metric