Worst air pollution Mankato, today and tomorrow

Today (9 August): Air quality in Mankato is fair. O3 is fair; AQI and NO2 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:00 AM (NO2: 44.4/100).
Tomorrow (10 August 2026): Air quality in Mankato is fair. All pollutants stay as today. Pollution peaks around 9:00 PM (NO2: 40.2/100). Airmine updates local air quality forecasts four times daily.

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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

Follow your pollen exposure and performance with the free Airmine–Strava integration. See your pollen and air quality exposure for every Strava activity.

Mankato's air quality is shaped largely by open southern Minnesota farmland air; fall ragweed pollen is the year's sharpest spike. None of these influences are extreme on their own, but together they shape the local pattern in Mankato. Checking current readings is still the best way to plan outdoor activity around Mankato.

Today - 9 August | Pollution peaks at 00:00

AQI:

Medium

44.4/100

PM2.5 (fine particles):

Good

14.9/100

PM10 (coarse particles):

Good

8.6/100

NO2 (nitrogen dioxide):

Medium

44.4/100

O3 (ozone):

Fair

38.2/100

SO2 (sulfur dioxide):

Good

4.0/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

12.6/100

PM1 (ultrafine particles):

Good

12.2/100

Levels show the poorest local air quality during the day

Tomorrow - 10 August | Pollution peaks at 21:00

AQI:

Medium

40.2/100

PM2.5 (fine particles):

Good

14.5/100

PM10 (coarse particles):

Good

8.1/100

NO2 (nitrogen dioxide):

Medium

40.2/100

O3 (ozone):

Fair

33.1/100

SO2 (sulfur dioxide):

Good

2.9/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

11.0/100

PM1 (ultrafine particles):

Good

11.3/100

Pollen forecast in Mankato

View pollen forecast

Frequently Asked Questions

Is air quality bad in Mankato right now?

On 9 August 2026, overall air quality in Mankato is fair. O3 is the main pollutant at 38.2/100. Pollution peaks around 12:00 AM (NO2: 44.4/100).

Will air quality be worse tomorrow in Mankato?

On 10 August 2026, air quality conditions in Mankato will be similar to today, with O3 forecast at fair at 33.1/100. Pollution peaks around 9:00 PM (NO2: 40.2/100).

When is air pollution at its worst in Mankato?

Air quality in Mankato shifts across the year. In short, winter generally brings the cleanest air, aside from brief inversion episodes during calm cold spells, whereas both spring planting and autumn harvest bring short bursts of elevated dust and smoke. Farm-heavy surrounding land is the main source of the seasonal dust spikes.

Are air quality levels in Mankato based on measurements or forecasts?

It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.

Why doesn’t the forecast always reflect wildfire impacts?

Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.

During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.

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Data provided by Airmine — Last update: 9 August 2026 at 20:27 CEST (Data is updated four times daily.)

This forecast is produced independently using Airmine's own atmospheric data and models.

Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.

Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.

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