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)
27
Good
Missoula, Montana
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.29 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
11.76 μg/m³
0
55
155
255
425
605+
20.96 ppb
0
55
71
86
201
201+
0.78 ppb
0
36
76
186
605
1005+
3.02 ppb
0
54
101
361
1250
2050+
0.27 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Missoula, Montana
Missoula, Montana
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AQI 22
Good
4.20μg/m³
PM2.5
19.00μg/m³
PM10
21.55ppb
O3
0.67ppb
SO2
1.50ppb
NO2
0.16ppm
CO
AQI 44
Good
7.77μg/m³
PM2.5
39.51μg/m³
PM10
14.81ppb
O3
1.03ppb
SO2
5.66ppb
NO2
0.40ppm
CO
AQI 27
Good
4.69μg/m³
PM2.5
20.62μg/m³
PM10
23.20ppb
O3
0.69ppb
SO2
2.24ppb
NO2
0.29ppm
CO
AQI 27
Good
4.67μg/m³
PM2.5
20.88μg/m³
PM10
20.44ppb
O3
0.96ppb
SO2
2.51ppb
NO2
0.37ppm
CO
AQI 56
Moderate
12.20μg/m³
PM2.5
54.50μg/m³
PM10
19.23ppb
O3
1.16ppb
SO2
4.39ppb
NO2
0.33ppm
CO
AQI 27
Good
4.77μg/m³
PM2.5
20.96μg/m³
PM10
19.53ppb
O3
1.09ppb
SO2
4.34ppb
NO2
0.31ppm
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 09:00:00, 2026-10-22.
The best air quality in Missoula, Montana was observed at 12:00:00 on 2026-10-22.
The air quality in Missoula, Montana right now is Good, with an AQI of 27.
In Missoula, Montana, PM2.5 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 5.292 μg/m3.
Missoula, Montana currently has a PM10 concentration of 11.764 μg/m3.
The current carbon monoxide (CO) level in Missoula, Montana is 0.267 ppm.
The current sulfur dioxide (SO2) concentration in Missoula, Montana is 0.775 ppb.
Missoula, Montana currently has an ozone (O3) concentration of 20.963 ppm.
The current level of nitrogen dioxide (NO2) in Missoula, Montana is 3.016 ppb.
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