Colonial Quarter, Saint Augustine Air Quality Forecast - Today, Tomorrow
Air Quality Today
Today (10 October): Air quality in Colonial Quarter is very poor. AQI and PM10 are very poor; PM2.5 is moderate; NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 PM (PM10: 87.8/100).
Air Quality Tomorrow
Tomorrow (11 October 2026): Air quality in Colonial Quarter is moderate. AQI improves to moderate; PM10 decreases to moderate; all other pollutants stay as today. Pollution peaks around 11:00 AM (PM10: 56.0/100).
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Air Quality
Today - 10 October
| Pollutant | Level | Value |
|---|---|---|
| AQI | Very poor | 87.8/100 |
| PM2.5 (fine particles) | Moderate | 60.0/100 |
| PM10 (coarse particles) | Very poor | 87.8/100 |
| NO2 (nitrogen dioxide) | Good | 0.6/100 |
| O3 (ozone) | Good | 7.7/100 |
| SO2 (sulfur dioxide) | Good | 0.1/100 |
| CO (carbon monoxide) | Good | 0.3/100 |
| HCHO (formaldehyde) | Good | 0.8/100 |
| PM1 (ultrafine particles) | Good | 4.7/100 |
Tomorrow - 11 October
| Pollutant | Level | Value |
|---|---|---|
| AQI | Moderate | 56.0/100 |
| PM2.5 (fine particles) | Moderate | 50.1/100 |
| PM10 (coarse particles) | Moderate | 56.0/100 |
| NO2 (nitrogen dioxide) | Good | 0.6/100 |
| O3 (ozone) | Good | 9.3/100 |
| SO2 (sulfur dioxide) | Good | 0.1/100 |
| CO (carbon monoxide) | Good | 0.3/100 |
| HCHO (formaldehyde) | Good | 0.8/100 |
| PM1 (ultrafine particles) | Good | 3.5/100 |
Local Environmental Conditions
This location in Saint Augustine combines built-up streets with more open land, so local traffic matters, though emissions are less concentrated than in a city center. Parks and street trees provide a modest buffer against traffic pollution. Breezes off the nearby water usually help clear pollutants away. Pollution carried in from the wider region can also raise levels at times.
Ozone is the main concern from April to November, when sunny days averaging 28°C turn traffic and other emissions into ozone by mid-afternoon. Cooler, still evenings from December to February, averaging about 15°C, tend to hold exhaust close to busy streets. January is usually the windiest month, averaging about 15 km/h, which helps keep the air clean.
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Frequently Asked Questions About Air Quality in Florida
Is air quality bad in Colonial Quarter right now?
On 10 October 2026, overall air quality in Colonial Quarter is very poor. AQI is the main air quality indicator at 87.8/100. Pollution peaks around 7:00 PM (PM10: 87.8/100).
Will air quality be worse tomorrow in Colonial Quarter?
On 11 October 2026, air quality conditions in Colonial Quarter will be better than today, with AQI forecast at moderate at 56.0/100. Pollution peaks around 11:00 AM (PM10: 56.0/100).
When is air pollution at its worst in Colonial Quarter?
Ozone is the main concern from April to November, when sunny days averaging 28°C turn traffic and other emissions into ozone by mid-afternoon. Cooler, still evenings from December to February, averaging about 15°C, tend to hold exhaust close to busy streets. January is usually the windiest month, averaging about 15 km/h, which helps keep the air clean.
Are air quality levels in Colonial Quarter 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. |