Stay updated with real-time air quality in Monticello, Minnesota 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)
31
Good
Monticello, Minnesota
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
1.24 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
4.86 μg/m³
0
55
155
255
425
605+
33.70 ppb
0
55
71
86
201
201+
0.28 ppb
0
36
76
186
605
1005+
4.53 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Monticello, Minnesota
Monticello, Minnesota
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AQI 31
Good
1.79μg/m³
PM2.5
7.63μg/m³
PM10
34.40ppb
O3
0.32ppb
SO2
4.92ppb
NO2
0.18ppm
CO
AQI 31
Good
2.42μg/m³
PM2.5
9.64μg/m³
PM10
34.35ppb
O3
0.40ppb
SO2
6.44ppb
NO2
0.19ppm
CO
AQI 31
Good
0.53μg/m³
PM2.5
1.91μg/m³
PM10
33.40ppb
O3
0.22ppb
SO2
3.85ppb
NO2
0.17ppm
CO
AQI 33
Good
3.16μg/m³
PM2.5
12.77μg/m³
PM10
36.14ppb
O3
0.41ppb
SO2
6.61ppb
NO2
0.19ppm
CO
AQI 34
Good
3.25μg/m³
PM2.5
13.59μg/m³
PM10
37.05ppb
O3
0.39ppb
SO2
6.19ppb
NO2
0.19ppm
CO
AQI 36
Good
4.40μg/m³
PM2.5
18.80μg/m³
PM10
39.42ppb
O3
0.42ppb
SO2
6.76ppb
NO2
0.19ppm
CO
Air quality data and pollutant measurements for Minnesota, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Monticello, Minnesota is updated every hour.
The worst air quality in Monticello, Minnesota in the last 24 hours was observed at 12:00:00 on 2026-04-24.
In the last 24 hrs, the best air quality in Monticello, Minnesota was observed at 04:00:00 on 2026-04-23.
The current air quality in Monticello, Minnesota is 31, categorized as Good based on real-time data.
The most common pollutant in Monticello, Minnesota is O3.
If the air quality in Monticello, Minnesota is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Monticello, Minnesota is 1.237 μg/m3.
The current PM10 concentration at Monticello, Minnesota is 4.86 μg/m3.
The current carbon monoxide (CO) concentration at Monticello, Minnesota is 0.179 ppm.
The current sulfur dioxide (SO2) concentration at Monticello, Minnesota is 0.279 ppb.
The current ozone (O3) concentration at Monticello, Minnesota is 33.695 ppm.
The current nitrogen dioxide (NO2) concentration at Monticello, Minnesota is 4.527 ppb.
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