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 | Lolo | 118 |
| 2 | Stevensville | 77 |
| 3 | Evergreen | 63 |
| 4 | Hamilton | 63 |
| 5 | Lincoln | 61 |
| 6 | Frenchtown | 59 |
| 7 | Kalispell | 57 |
| 8 | Bigfork | 55 |
| 9 | Plains | 50 |
| 10 | Livingston | 39 |
(local time)
SEE WORLD AQI RANKINGAir Quality Data contributor(s)
Station(s) operated by
Contributors
See all
4
LIVE AQI CITY RANKING
Real-time Montana
Cleanest city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Dillon | 0 |
| 2 | Great Falls | 0 |
| 3 | Big Timber | 1 |
| 4 | Browning | 2 |
| 5 | Lewistown | 2 |
| 6 | Cut Bank | 4 |
| 7 | Helena | 5 |
| 8 | Bonner-West Riverside | 6 |
| 9 | Chester | 6 |
| 10 | East Helena | 6 |
(local time)
SEE WORLD AQI RANKING3D 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 attribution
Contributors 4
- Montana Department of Environmental Quality
19 stations
Government
- 62 Anonymous contributor
62 stations
Anonymous
Data sources 3
Which is the most polluted city in Montana?
- Lolo118
- Stevensville77
- Evergreen63
- Hamilton63
- Lincoln61
- Frenchtown59
- Kalispell57
- Bigfork55
- Plains50
- Anaconda42
- Warm Springs42
- Livingston39
- Lame Deer38
- Orchard Homes38
- Dayton37
- Butte-Silver Bow (Balance)34
- Deer Lodge34
- East Missoula34
- Columbia Falls32
- Birney29
- Colstrip29
- Lakeside29
- Libby29
- Pablo29
- Somers29
- Thompson Falls29
- Malta28
- West Glacier26
- Boulder25
- Eureka25
- Helena Valley Southeast25
- Manhattan25
- Montana City25
- Philipsburg25
- Polson25
- Ronan25
- Three Forks25
- Townsend25
- Big Sky22
- Bozeman22
- Butte21
- Clancy21
- Clinton21
- Crow Agency21
- Forsyth21
- Fort Belknap Agency21
- Glasgow21
- Helena Valley Northeast21
- Seeley Lake21
- Superior21
- Whitehall21
- Wolf Point21
- Belgrade17
- Circle17
- Glendive17
- Hardin17
- Helena Valley Northwest17
- Helena Valley West Central17
- Hysham17
- Miles City17
- Missoula17
- Plentywood17
- Scobey17
- Terry17
- West Glendive17
- White Sulphur Springs17
- Wibaux17
- Lambert16
- Broadus15
- Helena West Side14
- Sidney14
- Baker13
- Chinook13
- Choteau13
- Ekalaka13
- Jordan13
- Virginia City13
- Winnett13
- Billings11
- Absarokee9
- Columbus9
- Conrad9
- Fort Benton9
- Four Corners9
- Harlowton9
- Havre9
- Laurel9
- Lockwood9
- North Browning9
- Red Lodge9
- Ryegate9
- South Browning9
- Sun Prairie9
- Whitefish9
- West Yellowstone8
- Ravalli7
- Bonner-West Riverside6
- Chester6
- East Helena6
- Helena5
- Malmstrom Air Force Base5
- Roundup5
- Shelby5
- Cut Bank4
- Browning2
- Lewistown2
- Big Timber1
- Dillon0
- Great Falls0
