Stainfield, Plano, Illinois Air Quality Forecast - Today, Tomorrow
Air Quality Today
Today (11 October): Air quality in Stainfield is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 AM (O3: 14.2/100).
Air Quality Tomorrow
Tomorrow (12 October 2026): Air quality in Stainfield is fair. AQI worsens to fair; NO2 increases to fair; all other pollutants stay as today. Pollution peaks around 5:00 PM (NO2: 30.4/100).
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Air Quality
Today - 11 October
| Pollutant | Level | Value |
|---|---|---|
| AQI | Good | 14.2/100 |
| PM2.5 (fine particles) | Good | 9.3/100 |
| PM10 (coarse particles) | Good | 5.6/100 |
| NO2 (nitrogen dioxide) | Good | 7.9/100 |
| O3 (ozone) | Good | 14.2/100 |
| SO2 (sulfur dioxide) | Good | 0.9/100 |
| CO (carbon monoxide) | Good | 0.5/100 |
| HCHO (formaldehyde) | Good | 3.2/100 |
| PM1 (ultrafine particles) | Good | 5.1/100 |
Tomorrow - 12 October
| Pollutant | Level | Value |
|---|---|---|
| AQI | Fair | 30.4/100 |
| PM2.5 (fine particles) | Good | 19.7/100 |
| PM10 (coarse particles) | Good | 11.3/100 |
| NO2 (nitrogen dioxide) | Fair | 30.4/100 |
| O3 (ozone) | Good | 14.9/100 |
| SO2 (sulfur dioxide) | Good | 0.6/100 |
| CO (carbon monoxide) | Good | 0.5/100 |
| HCHO (formaldehyde) | Good | 3.3/100 |
| PM1 (ultrafine particles) | Good | 12.1/100 |
Local Environmental Conditions
This site in Plano, Illinois lies in a lightly developed area, where local traffic adds relatively little to air pollution. Farming is another source: tilling and harvest raise dust, while fertilizer and livestock release ammonia that turns into fine particles. Winds here are fairly strong, averaging around 15 km/h, which helps disperse local pollution. Pollution carried in from the wider region can also raise levels at times.
Warm, sunny weather from June to August, around 24°C at its peak, raises afternoon ozone levels. Fine particle levels climb from November to March, as wood burning and traffic combine with cold, still air averaging -5°C. Field work, harvest and any burning of crop residues add bursts of dust and smoke in the farming season. Breezy weather in March, with winds near 20 km/h, tends to sweep pollution away.
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Frequently Asked Questions About Air Quality in Illinois
Is air quality bad in Stainfield right now?
On 11 October 2026, overall air quality in Stainfield is good. AQI is the main air quality indicator at 14.2/100. Pollution peaks around 11:00 AM (O3: 14.2/100).
Will air quality be worse tomorrow in Stainfield?
On 12 October 2026, air quality conditions in Stainfield will be worse than today, with AQI forecast at fair at 30.4/100. Pollution peaks around 5:00 PM (NO2: 30.4/100).
When is air pollution at its worst in Stainfield?
Warm, sunny weather from June to August, around 24°C at its peak, raises afternoon ozone levels. Fine particle levels climb from November to March, as wood burning and traffic combine with cold, still air averaging -5°C. Field work, harvest and any burning of crop residues add bursts of dust and smoke in the farming season. Breezy weather in March, with winds near 20 km/h, tends to sweep pollution away.
Are air quality levels in Stainfield 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. |