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)
28
Good
Missoula, Montana
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.70 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
29.72 μg/m³
0
55
155
255
425
605+
12.29 ppb
0
55
71
86
201
201+
0.49 ppb
0
36
76
186
605
1005+
5.86 ppb
0
54
101
361
1250
2050+
0.34 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Missoula, Montana
Missoula, Montana
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AQI 39
Good
6.08μg/m³
PM2.5
14.99μg/m³
PM10
42.45ppb
O3
0.90ppb
SO2
4.62ppb
NO2
0.26ppm
CO
AQI 28
Good
5.20μg/m³
PM2.5
24.00μg/m³
PM10
30.05ppb
O3
0.89ppb
SO2
5.93ppb
NO2
0.33ppm
CO
AQI 41
Good
3.75μg/m³
PM2.5
17.04μg/m³
PM10
43.55ppb
O3
0.84ppb
SO2
4.92ppb
NO2
0.27ppm
CO
AQI 56
Moderate
12.20μg/m³
PM2.5
54.99μg/m³
PM10
37.67ppb
O3
0.97ppb
SO2
5.34ppb
NO2
0.24ppm
CO
AQI 54
Moderate
11.49μg/m³
PM2.5
49.99μg/m³
PM10
24.60ppb
O3
0.82ppb
SO2
6.95ppb
NO2
0.30ppm
CO
AQI 23
Good
4.16μg/m³
PM2.5
18.26μg/m³
PM10
24.86ppb
O3
0.66ppb
SO2
5.99ppb
NO2
0.28ppm
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, 2026-01-22.
The best air quality in Missoula, Montana was observed at 12:00:00 on 2026-01-23.
The air quality in Missoula, Montana right now is Good, with an AQI of 28.
In Missoula, Montana, PM10 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 4.698 μg/m3.
Missoula, Montana currently has a PM10 concentration of 29.718 μg/m3.
The current carbon monoxide (CO) level in Missoula, Montana is 0.339 ppm.
The current sulfur dioxide (SO2) concentration in Missoula, Montana is 0.488 ppb.
Missoula, Montana currently has an ozone (O3) concentration of 12.294 ppm.
The current level of nitrogen dioxide (NO2) in Missoula, Montana is 5.863 ppb.
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