Stay updated with real-time air quality in Missoula, Montana featuring accurate data on AQI, PM2.5, PM10, O3, NO2, SO2, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.
Live AQI (Air Quality Index)
18
Good
Missoula, Montana
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
0.31 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
1.50 μg/m³
0
55
155
255
425
605+
19.16 ppb
0
55
71
86
201
201+
0.81 ppb
0
36
76
186
605
1005+
4.51 ppb
0
54
101
361
1250
2050+
0.15 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Missoula, Montana
Missoula, Montana
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AQI 31
Good
2.42μg/m³
PM2.5
9.97μg/m³
PM10
33.52ppb
O3
1.16ppb
SO2
0.52ppb
NO2
0.14ppm
CO
AQI 16
Good
1.23μg/m³
PM2.5
5.48μg/m³
PM10
17.21ppb
O3
1.04ppb
SO2
4.27ppb
NO2
0.18ppm
CO
AQI 32
Good
2.09μg/m³
PM2.5
8.64μg/m³
PM10
34.53ppb
O3
1.15ppb
SO2
0.97ppb
NO2
0.15ppm
CO
AQI 49
Good
9.20μg/m³
PM2.5
41.00μg/m³
PM10
33.87ppb
O3
1.22ppb
SO2
2.13ppb
NO2
0.16ppm
CO
AQI 27
Good
5.01μg/m³
PM2.5
21.55μg/m³
PM10
21.22ppb
O3
0.61ppb
SO2
2.43ppb
NO2
0.19ppm
CO
AQI 22
Good
3.34μg/m³
PM2.5
14.62μg/m³
PM10
24.24ppb
O3
0.82ppb
SO2
2.41ppb
NO2
0.18ppm
CO
The air quality data for Montana, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Missoula, Montana are available every hour.
Missoula, Montana experienced its worst air quality at 03:00:00, 2026-09-07.
The best air quality in Missoula, Montana was observed at 10:00:00 on 2026-09-07.
The air quality in Missoula, Montana right now is Good, with an AQI of 18.
In Missoula, Montana, O3 is the most frequently found pollutant.
When air quality in Missoula, Montana is compromised, staying indoors and wearing a mask can reduce health risks.
Missoula, Montana currently has a PM2.5 concentration of 0.312 μg/m3.
Missoula, Montana currently has a PM10 concentration of 1.503 μg/m3.
The current carbon monoxide (CO) level in Missoula, Montana is 0.148 ppm.
The current sulfur dioxide (SO2) concentration in Missoula, Montana is 0.807 ppb.
Missoula, Montana currently has an ozone (O3) concentration of 19.156 ppm.
The current level of nitrogen dioxide (NO2) in Missoula, Montana is 4.512 ppb.
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