Montana
 

AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20170623_mt_id_wy.jpg Map Map Map Map Map Map Map Map Map Map Map Map
 
Legend: National Parks/Monuments National Parks/Monuments     Legend: Tribal Boundaries Tribal Boundaries
The tribal boundaries shown here are provided by the Bureau of Indian Affairs and are intended to be used as a general spatial reference only. They are not a formal determination of tribal boundaries by the EPA.
 - https://files.airnowtech.org/airnow/today/cur_aqi_mt_id_wy.jpg Map Map Map Map Map Map Map Map Map Map Map Map
 
Legend: National Parks/Monuments National Parks/Monuments     Legend: Tribal Boundaries Tribal Boundaries
The tribal boundaries shown here are provided by the Bureau of Indian Affairs and are intended to be used as a general spatial reference only. They are not a formal determination of tribal boundaries by the EPA.
AQI Animation - https://files.airnowtech.org/airnow/today/anim_aqi_mt_id_wy.gif Map Map Map Map Map Map Map Map Map Map Map Map
 
Legend: National Parks/Monuments National Parks/Monuments     Legend: Tribal Boundaries Tribal Boundaries
The tribal boundaries shown here are provided by the Bureau of Indian Affairs and are intended to be used as a general spatial reference only. They are not a formal determination of tribal boundaries by the EPA.
 
AQI: Good (0 - 50) AQI: Good (0 - 50)
Air quality is considered satisfactory, and air pollution poses little or no risk.
AQI: Moderate (51 - 100) AQI: Moderate (51 - 100)
Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.
AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy for Sensitive Groups (101 - 150)
Although general public is not likely to be affected at this AQI range, people with lung disease, older adults and children are at a greater risk from exposure to ozone, whereas persons with heart and lung disease, older adults and children are at greater risk from the presence of particles in the air.
AQI: Unhealthy (151 - 200) AQI: Unhealthy (151 - 200)
Everyone may begin to experience health effects members of sensitive groups may experience more serious health effects.
 AQI:Very Unhealthy (201 - 300) AQI: Very Unhealthy (201 - 300)
Health alert: everyone may experience more serious health effects.
AQI: Hazardous(301 - 500) AQI: Hazardous (301 - 500)
Health warnings of emergency conditions. The entire population is more likely to be affected.
Action DayAction Day
 
State Air Quality Resources
Air Quality Monitoring In Yellowstone County, Montana
American Lung Association (ALA) of the Montanna
Montana DEQ - Air Quality Information
Montana DEQ - Air Quality Monitoring
Montana DEQ - Contacts
Montana Department of Environmental Quality (DEQ)
Click on the city name for more detailed information.

printable summary
FORECAST CURRENT
AQI
Fri
Jun 23
Sat
Jun 24
Billings
aqi not available
aqi not available
25 
Birney
aqi not available
aqi not available
108 
Bozeman
aqi not available
aqi not available
23 
Broadus
aqi not available
aqi not available
66 
Butte
aqi not available
aqi not available
21 
Flathead Valley
aqi not available
aqi not available
32 
Apache Junction
74 
aqi not available
74 
Apache Junction
90 
75 
41 
Apache Junction
47 
58 
47 
Apache Junction
aqi not available
74 
45 
Apache Junction
85 
50 
74 
Apache Junction
28 
30 
50 
Apache Junction
74 
90 
93 
Apache Junction
90 
80 
41 
Apache Junction
125 
90 
52 
Apache Junction
47 
50 
56 
Apache Junction
80 
90 
74 
Note: Values above 500 are considered Beyond the AQI. Follow recommendations for the Hazardous category. Additional information on reducing exposure to extremely high levels of particle pollution is available here.