Willmar Township Air Quality Forecast - Today, Tomorrow
Air Quality Today
Today (10 October): Air quality in Willmar Township is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 AM (O3: 18.6/100).
Air Quality Tomorrow
Tomorrow (11 October 2026): Air quality in Willmar Township is moderate. AQI worsens to moderate; PM2.5 increases to fair; NO2 increases to moderate; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 3:00 PM (NO2: 40.6/100).
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Air Quality
Today - 10 October
| Pollutant | Level | Value |
|---|---|---|
| AQI | Good | 18.6/100 |
| PM2.5 (fine particles) | Good | 17.3/100 |
| PM10 (coarse particles) | Good | 11.2/100 |
| NO2 (nitrogen dioxide) | Good | 16.7/100 |
| O3 (ozone) | Good | 18.6/100 |
| SO2 (sulfur dioxide) | Good | 0.5/100 |
| CO (carbon monoxide) | Good | 0.5/100 |
| HCHO (formaldehyde) | Good | 1.3/100 |
| PM1 (ultrafine particles) | Good | 3.1/100 |
Tomorrow - 11 October
| Pollutant | Level | Value |
|---|---|---|
| AQI | Moderate | 40.6/100 |
| PM2.5 (fine particles) | Fair | 24.2/100 |
| PM10 (coarse particles) | Good | 15.0/100 |
| NO2 (nitrogen dioxide) | Moderate | 40.6/100 |
| O3 (ozone) | Fair | 20.2/100 |
| SO2 (sulfur dioxide) | Good | 0.4/100 |
| CO (carbon monoxide) | Good | 0.6/100 |
| HCHO (formaldehyde) | Good | 2.0/100 |
| PM1 (ultrafine particles) | Good | 6.4/100 |
Local Environmental Conditions
The center of Willmar Township combines built-up streets with more open land, so local traffic matters, though emissions are less concentrated than in a city center. In cold weather, wood burning and other home heating become a noticeable source of fine particles. The fields nearby contribute dust during field work, as well as ammonia from fertilizer and manure that helps form fine particles in the air.
Warm, sunny weather from June to August, around 23°C at its peak, raises afternoon ozone levels. From November to April, temperatures near -8°C let smoke and particles from home heating and traffic build up, especially on cold, still mornings. Plowing and harvest in the nearby fields bring occasional spikes in dust. Stronger winds around April, about 20 km/h on average, usually bring some of the cleanest air of the year.
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Frequently Asked Questions About Air Quality in Minnesota
Is air quality bad in Willmar Township right now?
On 10 October 2026, overall air quality in Willmar Township is good. AQI is the main air quality indicator at 18.6/100. Pollution peaks around 11:00 AM (O3: 18.6/100).
Will air quality be worse tomorrow in Willmar Township?
On 11 October 2026, air quality conditions in Willmar Township will be worse than today, with AQI forecast at moderate at 40.6/100. Pollution peaks around 3:00 PM (NO2: 40.6/100).
When is air pollution at its worst in Willmar Township?
Warm, sunny weather from June to August, around 23°C at its peak, raises afternoon ozone levels. From November to April, temperatures near -8°C let smoke and particles from home heating and traffic build up, especially on cold, still mornings. Plowing and harvest in the nearby fields bring occasional spikes in dust. Stronger winds around April, about 20 km/h on average, usually bring some of the cleanest air of the year.
Are air quality levels in Willmar Township 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.
Understanding the Scale
The 0–100 air quality scores represent risk levels, not direct air pollutant concentrations. Higher scores indicate higher risk.
Air Quality
| Good | 0-20 | Low air quality risk. Air quality is expected to be good, with low levels of pollution. |
| Fair | 20-40 | Generally low air quality risk. Air quality is expected to be acceptable, with some pollution present. |
| Moderate | 40-60 | Moderate air quality risk. Air pollution is elevated and air quality may be less favorable. |
| Poor | 60-80 | High air quality risk. Air pollution is high and air quality is expected to be poor. |
| Very Poor | 80-100 | Very high air quality risk. Air pollution is very high and air quality is expected to be very poor. |