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 | Libby | 64 |
| 2 | Missoula | 58 |
| 3 | Kalispell | 54 |
| 4 | East Missoula | 43 |
| 5 | Whitefish | 41 |
| 6 | Thompson Falls | 35 |
| 7 | Frenchtown | 27 |
| 8 | Bozeman | 23 |
| 9 | Malta | 21 |
| 10 | Broadus | 15 |
(local time)
SEE WORLD AQI RANKINGAir Quality contributors Sources
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Data sources
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Real-time Montana
Cleanest city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Butte | 0 |
| 2 | Dillon | 0 |
| 3 | Havre | 0 |
| 4 | Helena | 0 |
| 5 | West Yellowstone | 0 |
| 6 | Bigfork | 1 |
| 7 | Lewistown | 5 |
| 8 | Columbia Falls | 6 |
| 9 | Great Falls | 6 |
| 10 | Helena West Side | 6 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
Good
Moderate
Unhealthy for sensitive groups
Unhealthy
Very unhealthy
Hazardous
How to best protect from air pollution?
Montana air quality data sources
Contributors 2
- 10 Anonymous contributor
10 stations
Anonymous
Data sources 1
Which is the most polluted city in Montana?
- Libby64
- Missoula58
- Kalispell54
- East Missoula43
- Whitefish41
- Thompson Falls35
- Frenchtown27
- Plentywood25
- Manhattan25
- Bozeman23
- Belgrade21
- Three Forks21
- Boulder21
- Fort Belknap Agency21
- Townsend21
- Butte-Silver Bow (Balance)21
- Malta21
- Chinook21
- Warm Springs21
- Deer Lodge21
- Anaconda21
- Philipsburg17
- Whitehall17
- Clancy17
- West Glendive17
- Four Corners17
- Pablo17
- Glendive17
- Plains17
- Orchard Homes17
- Scobey17
- Polson17
- Ronan17
- Wibaux17
- Broadus15
- West Glacier15
- Birney14
- Baker13
- Superior13
- Somers13
- Helena Valley Northwest13
- Lincoln13
- Livingston13
- Lakeside13
- Helena Valley Northeast13
- Helena Valley Southeast13
- White Sulphur Springs13
- Ekalaka13
- Montana City13
- East Helena13
- Helena Valley West Central13
- Cut Bank12
- Evergreen11
- Seeley Lake10
- Lambert10
- Jordan9
- Butte
- Wolf Point9
- Lame Deer9
- Winnett9
- Crow Agency9
- Glasgow9
- Big Timber9
- West Yellowstone
- Dillon
- Lolo9
- Hardin9
- Harlowton9
- Havre
- Miles City9
- Helena
- Circle9
- Bonner-West Riverside9
- Clinton9
- Virginia City9
- Terry9
- Hysham9
- Colstrip9
- Forsyth9
- Red Lodge9
- Hamilton8
- Eureka8
- Sidney7
- Billings7
- Helena West Side6
- Great Falls6
- Columbia Falls6
- Lewistown5
- South Browning5
- Stanford5
- Stevensville5
- Sun Prairie5
- Laurel5
- Ryegate5
- Roundup5
- Malmstrom Air Force Base5
- Fort Benton5
- Lockwood5
- Conrad5
- Columbus5
- Shelby5
- Choteau5
- Chester5
- Browning5
- North Browning5
- Big Sky5
- Absarokee5
- Bigfork1
