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)
29
Good
Missoula, Montana
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
0.64 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
2.61 μg/m³
0
55
155
255
425
605+
30.80 ppb
0
55
71
86
201
201+
0.29 ppb
0
36
76
186
605
1005+
4.29 ppb
0
54
101
361
1250
2050+
0.15 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Missoula, Montana
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AQI 31
Good
2.42μg/m³
PM2.5
5.10μg/m³
PM10
33.76ppb
O3
0.44ppb
SO2
2.48ppb
NO2
0.16ppm
CO
AQI 23
Good
3.94μg/m³
PM2.5
21.18μg/m³
PM10
25.13ppb
O3
0.27ppb
SO2
7.56ppb
NO2
0.20ppm
CO
AQI 44
Good
7.96μg/m³
PM2.5
34.91μg/m³
PM10
23.94ppb
O3
0.46ppb
SO2
2.86ppb
NO2
0.15ppm
CO
AQI 64
Moderate
15.90μg/m³
PM2.5
70.99μg/m³
PM10
26.03ppb
O3
0.42ppb
SO2
4.76ppb
NO2
0.16ppm
CO
AQI 44
Good
7.84μg/m³
PM2.5
33.75μg/m³
PM10
14.42ppb
O3
0.11ppb
SO2
12.25ppb
NO2
0.21ppm
CO
AQI 27
Good
4.70μg/m³
PM2.5
20.14μg/m³
PM10
27.81ppb
O3
0.13ppb
SO2
9.61ppb
NO2
0.21ppm
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 07:00:00, 2026-03-15.
The best air quality in Missoula, Montana was observed at 04:00:00 on 2026-03-14.
The air quality in Missoula, Montana right now is Good, with an AQI of 29.
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 0.635 μg/m3.
Missoula, Montana currently has a PM10 concentration of 2.606 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 0.289 ppb.
Missoula, Montana currently has an ozone (O3) concentration of 30.803 ppm.
The current level of nitrogen dioxide (NO2) in Missoula, Montana is 4.285 ppb.
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