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)
33
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)
5.98 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
21.49 μg/m³
0
55
155
255
425
605+
Ozone (O3)
13.53 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
0.61 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
5.46 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
0.43 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 38
Good
6.58μg/m³
PM2.5
25.02μg/m³
PM10
19.50ppb
O3
0.54ppb
SO2
5.97ppb
NO2
0.41ppm
CO
Onalaska, Wisconsin
AQI 33
Good
6.36μg/m³
PM2.5
23.72μg/m³
PM10
18.90ppb
O3
0.54ppb
SO2
6.00ppb
NO2
0.41ppm
CO
La Crosse, Wisconsin
AQI 33
Good
6.33μg/m³
PM2.5
22.44μg/m³
PM10
23.97ppb
O3
0.60ppb
SO2
6.04ppb
NO2
0.40ppm
CO
Rochester, Minnesota
AQI 33
Good
5.89μg/m³
PM2.5
26.97μg/m³
PM10
20.97ppb
O3
0.67ppb
SO2
2.91ppb
NO2
0.46ppm
CO
Eau Claire, Wisconsin
AQI 38
Good
6.70μg/m³
PM2.5
12.52μg/m³
PM10
18.11ppb
O3
0.59ppb
SO2
5.67ppb
NO2
0.44ppm
CO
Red Wing, Minnesota
AQI 27
Good
4.61μg/m³
PM2.5
14.98μg/m³
PM10
18.72ppb
O3
0.77ppb
SO2
4.33ppb
NO2
0.48ppm
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 03:00:00 on 2026-09-07.
When did Winona, Minnesota have its best air quality in the last 24 hours?
The best air quality in Winona, Minnesota was recorded at 04:00:00 on 2026-09-06.
What is the real-time air quality index for Winona, Minnesota?
The real-time air quality index in Winona, Minnesota is 33, currently categorized as Good.
Which pollutant is found most often in Winona, Minnesota?
The most common pollutant in Winona, Minnesota is PM2.5.
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 5.979 μg/m3.
What are the current PM10 levels at Winona, Minnesota?
The current PM10 levels in Winona, Minnesota are 21.489 μg/m3.
What are the current carbon monoxide (CO) levels at Winona, Minnesota?
The current carbon monoxide (CO) level in Winona, Minnesota is 0.434 ppm.
What are the current sulfur dioxide (SO2) levels at Winona, Minnesota?
The current sulfur dioxide (SO2) levels in Winona, Minnesota are 0.611 ppb.
What are the current ozone (O3) levels at Winona, Minnesota?
The current ozone (O3) levels at Winona, Minnesota is 13.525 ppm.
What are the current nitrogen dioxide (NO2) levels at Winona, Minnesota?
The current nitrogen dioxide (NO2) levels at Winona, Minnesota is 5.458 ppb.
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