Prior Lake Air Quality Forecast - Today, Tomorrow
Air Quality Today
Today (6 October): Air quality in Prior Lake is fair. AQI, PM10, and NO2 are fair; PM2.5, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 10:00 AM (PM10: 26.0/100).
Air Quality Tomorrow
Tomorrow (7 October 2026): Air quality in Prior Lake is good. AQI improves to good; PM10 decreases to good; NO2 decreases to good; all other pollutants stay as today. Pollution peaks around 5:00 PM (NO2: 19.4/100).
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Air Quality
Today - 6 October
| Pollen species | Level | Value |
|---|---|---|
| AQI | Fair | 26.0/100 |
| PM2.5 (fine particles) | Good | 19.4/100 |
| PM10 (coarse particles) | Fair | 26.0/100 |
| NO2 (nitrogen dioxide) | Fair | 21.5/100 |
| O3 (ozone) | Good | 13.2/100 |
| SO2 (sulfur dioxide) | Good | 0.4/100 |
| CO (carbon monoxide) | Good | 0.5/100 |
| HCHO (formaldehyde) | Good | 3.3/100 |
| PM1 (ultrafine particles) | Good | 6.5/100 |
Tomorrow - 7 October
| Pollen species | Level | Value |
|---|---|---|
| AQI | Good | 19.4/100 |
| PM2.5 (fine particles) | Good | 15.3/100 |
| PM10 (coarse particles) | Good | 13.3/100 |
| NO2 (nitrogen dioxide) | Good | 19.4/100 |
| O3 (ozone) | Good | 13.2/100 |
| SO2 (sulfur dioxide) | Good | 0.7/100 |
| CO (carbon monoxide) | Good | 0.5/100 |
| HCHO (formaldehyde) | Good | 3.6/100 |
| PM1 (ultrafine particles) | Good | 9.0/100 |
Local Environmental Conditions
Around Prior Lake, a mix of built-up land and open space means traffic is an important, but not overwhelming, local pollution source. Home heating, especially wood stoves and fireplaces, adds smoke and fine particles in the colder months. Trees nearby help filter some particles from the air, though in hot weather they also emit compounds that feed ozone formation.
Warm, sunny weather from June to August, around 23°C at its peak, raises afternoon ozone levels. Fine particle levels climb from November to April, as home heating and traffic combine with cold, still air averaging -8°C. Overall, 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 Prior Lake right now?
On 6 October 2026, overall air quality in Prior Lake is fair. AQI is the main air quality indicator at 26.0/100. Pollution peaks around 10:00 AM (PM10: 26.0/100).
Will air quality be worse tomorrow in Prior Lake?
On 7 October 2026, air quality conditions in Prior Lake will be better than today, with AQI forecast at good at 19.4/100. Pollution peaks around 5:00 PM (NO2: 19.4/100).
When is air pollution at its worst in Prior Lake?
Warm, sunny weather from June to August, around 23°C at its peak, raises afternoon ozone levels. Fine particle levels climb from November to April, as home heating and traffic combine with cold, still air averaging -8°C. Overall, 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 Prior Lake 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. |