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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 | Clinton | 40 |
| 2 | Absarokee | 31 |
| 3 | Malta | 25 |
| 4 | Miles City | 25 |
| 5 | West Glacier | 21 |
| 6 | Great Falls | 19 |
| 7 | Lewistown | 18 |
| 8 | East Helena | 16 |
| 9 | Havre | 16 |
| 10 | Crow Agency | 15 |
(local time)
SEE WORLD AQI RANKINGAIR QUALITY DATA CONTRIBUTORS
121 Contributors
See all
LIVE AQI CITY RANKING
Real-time Montana
Cleanest city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Big Sky | 0 |
| 2 | Butte | 0 |
| 3 | Frenchtown | 2 |
| 4 | West Yellowstone | 2 |
| 5 | Bigfork | 3 |
| 6 | Dillon | 3 |
| 7 | Lincoln | 3 |
| 8 | Lolo | 3 |
| 9 | Missoula | 3 |
| 10 | Ravalli | 3 |
(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
121Contributors
- 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
- 116 Anonymous contributors
116 stations
116 Anonymous Contributors
Which is the most polluted city in Montana?
- Clinton 40
- Absarokee 31
- Malta 25
- Miles City 25
- Fort Belknap Agency 23
- Chinook 22
- Birney 21
- West Glacier 21
- Great Falls 19
- Wibaux 19
- Colstrip 18
- Forsyth 18
- Hysham 18
- Lame Deer 18
- Lewistown 18
- Glendive 17
- Jordan 17
- Baker 16
- East Helena 16
- Ekalaka 16
- Havre 16
- Roundup 16
- Sidney 16
- Terry 16
- Winnett 16
- Circle 15
- Crow Agency 15
- Glasgow 15
- Ryegate 15
- Thompson Falls 15
- Harlowton 14
- Lockwood 14
- Plentywood 14
- Scobey 14
- Stanford 14
- Fort Benton 13
- Laurel 13
- Wolf Point 13
- Broadus 12
- Chester 12
- Lambert 12
- Malmstrom Air Force Base 12
- Sun Prairie 12
- Belgrade 11
- Billings 11
- Cut Bank 11
- Hardin 11
- Helena 11
- Noxon 11
- Choteau 10
- Hot Springs 10
- White Sulphur Springs 10
- Libby 9
- Manhattan 9
- Dayton 8
- Evergreen 8
- Lakeside 8
- Pablo 8
- Somers 8
- Stevensville 8
- Superior 8
- Three Forks 8
- Townsend 8
- Anaconda 7
- Big Timber 7
- Bonner-West Riverside 7
- Charlo 7
- Clancy 7
- Four Corners 7
- Helena Valley Northeast 7
- Helena Valley Northwest 7
- Helena Valley Southeast 7
- Helena West Side 7
- Livingston 7
- Montana City 7
- Ronan 7
- Boulder 6
- Columbia Falls 6
- Conrad 6
- Deer Lodge 6
- Eureka 6
- Helena Valley West Central 6
- Kalispell 6
- Plains 6
- Virginia City 6
- Warm Springs 6
- Whitehall 6
- Arlee 5
- Bozeman 5
- Browning 5
- Butte-Silver Bow (Balance) 5
- Columbus 5
- Hamilton 5
- Polson 5
- West Glendive 5
- Whitefish 5
- East Missoula 4
- North Browning 4
- Orchard Homes 4
- Philipsburg 4
- Shelby 4
- South Browning 4
- Bigfork 3
- Dillon 3
- Lincoln 3
- Lolo 3
- Missoula 3
- Ravalli 3
- Red Lodge 3
- Seeley Lake 3
- Frenchtown 2
- West Yellowstone 2
- Wisdom 1
- Big Sky 0
- Butte 0
AQI US, Metric