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)
38
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)
4.47 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
22.49 μg/m³
0
55
155
255
425
605+
Ozone (O3)
40.61 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
0.73 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
2.89 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
0.22 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 36
Good
4.06μg/m³
PM2.5
16.48μg/m³
PM10
39.13ppb
O3
0.99ppb
SO2
3.50ppb
NO2
0.25ppm
CO
Onalaska, Wisconsin
AQI 36
Good
4.07μg/m³
PM2.5
16.19μg/m³
PM10
39.30ppb
O3
0.94ppb
SO2
3.47ppb
NO2
0.25ppm
CO
La Crosse, Wisconsin
AQI 35
Good
4.10μg/m³
PM2.5
16.46μg/m³
PM10
38.01ppb
O3
0.81ppb
SO2
3.44ppb
NO2
0.24ppm
CO
Rochester, Minnesota
AQI 37
Good
5.90μg/m³
PM2.5
27.01μg/m³
PM10
40.00ppb
O3
0.85ppb
SO2
4.03ppb
NO2
0.28ppm
CO
Eau Claire, Wisconsin
AQI 37
Good
4.01μg/m³
PM2.5
8.38μg/m³
PM10
39.98ppb
O3
0.83ppb
SO2
4.09ppb
NO2
0.26ppm
CO
Red Wing, Minnesota
AQI 38
Good
6.27μg/m³
PM2.5
33.62μg/m³
PM10
41.02ppb
O3
0.93ppb
SO2
4.24ppb
NO2
0.29ppm
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 09:00:00 on 2026-07-23.
When did Winona, Minnesota have its best air quality in the last 24 hours?
The best air quality in Winona, Minnesota was recorded at 12:00:00 on 2026-07-23.
What is the real-time air quality index for Winona, Minnesota?
The real-time air quality index in Winona, Minnesota is 38, 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 4.472 μg/m3.
What are the current PM10 levels at Winona, Minnesota?
The current PM10 levels in Winona, Minnesota are 22.488 μg/m3.
What are the current carbon monoxide (CO) levels at Winona, Minnesota?
The current carbon monoxide (CO) level in Winona, Minnesota is 0.219 ppm.
What are the current sulfur dioxide (SO2) levels at Winona, Minnesota?
The current sulfur dioxide (SO2) levels in Winona, Minnesota are 0.734 ppb.
What are the current ozone (O3) levels at Winona, Minnesota?
The current ozone (O3) levels at Winona, Minnesota is 40.606 ppm.
What are the current nitrogen dioxide (NO2) levels at Winona, Minnesota?
The current nitrogen dioxide (NO2) levels at Winona, Minnesota is 2.889 ppb.
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