Real-time air quality index in Winona, Minnesota today
Stay updated with real-time air quality in Winona, 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)
19
Good
Winona, Minnesota
Last updated: ... (Local time)
Common air pollutants in Winona, Minnesota
Good
Fine
Moderate
Poor
Very poor
Hazardous
Particulate Matter2.5 (PM2.5)
1.78 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
7.22 μg/m³
0
55
155
255
425
605+
Ozone (O3)
20.07 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
0.17 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
1.07 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
0.13 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Winona, Minnesota
Winona, Minnesota
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Winona, Minnesota air quality map: Real-time AQI near you
Air quality in nearby cities
Holmen, Wisconsin
AQI 20
Good
1.58μg/m³
PM2.5
7.81μg/m³
PM10
21.77ppb
O3
0.36ppb
SO2
1.91ppb
NO2
0.18ppm
CO
Onalaska, Wisconsin
AQI 20
Good
1.54μg/m³
PM2.5
7.54μg/m³
PM10
21.57ppb
O3
0.40ppb
SO2
2.11ppb
NO2
0.19ppm
CO
La Crosse, Wisconsin
AQI 21
Good
3.15μg/m³
PM2.5
14.00μg/m³
PM10
22.91ppb
O3
0.16ppb
SO2
1.04ppb
NO2
0.12ppm
CO
Rochester, Minnesota
AQI 21
Good
0.80μg/m³
PM2.5
3.00μg/m³
PM10
23.00ppb
O3
0.52ppb
SO2
1.94ppb
NO2
0.21ppm
CO
Eau Claire, Wisconsin
AQI 19
Good
0.60μg/m³
PM2.5
2.04μg/m³
PM10
20.54ppb
O3
0.66ppb
SO2
2.27ppb
NO2
0.20ppm
CO
Red Wing, Minnesota
AQI 19
Good
0.82μg/m³
PM2.5
2.82μg/m³
PM10
20.79ppb
O3
0.62ppb
SO2
2.29ppb
NO2
0.22ppm
CO
How accurate is Minnesota, USA air quality data?
Air quality measurements for Minnesota, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Frequently asked questions
How frequently is the air quality data for Winona, Minnesota updated?
Air quality data for Winona, Minnesota is updated on an hourly basis.
When did Winona, Minnesota experience the worst air quality in the last 24 hours?
The worst air quality in Winona, Minnesota was recorded at 12:00:00 on 2025-10-22.
When did Winona, Minnesota have its best air quality in the last 24 hours?
The best air quality in Winona, Minnesota was recorded at 05:00:00 on 2025-10-21.
What is the real-time air quality index for Winona, Minnesota?
The real-time air quality index in Winona, Minnesota is 20, currently categorized as Good.
Which pollutant is found most often in Winona, Minnesota?
The most common pollutant in Winona, Minnesota is O3.
What can I do if the air quality in Winona, Minnesota is poor?
If the air quality in Winona, Minnesota is poor, limit outdoor activities and use a mask to safeguard your health.
What are the current PM2.5 levels in Winona, Minnesota?
The measured PM2.5 levels in Winona, Minnesota at present are 1.843 μg/m3.
What are the current PM10 levels at Winona, Minnesota?
The current PM10 levels in Winona, Minnesota are 8 μg/m3.
What are the current carbon monoxide (CO) levels at Winona, Minnesota?
The current carbon monoxide (CO) level in Winona, Minnesota is 0.122 ppm.
What are the current sulfur dioxide (SO2) levels at Winona, Minnesota?
The current sulfur dioxide (SO2) levels in Winona, Minnesota are 0.174 ppb.
What are the current ozone (O3) levels at Winona, Minnesota?
The current ozone (O3) levels at Winona, Minnesota is 21.793 ppm.
What are the current nitrogen dioxide (NO2) levels at Winona, Minnesota?
The current nitrogen dioxide (NO2) levels at Winona, Minnesota is 1.127 ppb.
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