Worst air pollution Highland City, today and tomorrow
Today (20 September): Air quality in Highland City is very poor. AQI and PM10 are very poor; PM2.5 is poor; NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 AM (PM10: 100/100).
Tomorrow (21 September 2026): Air quality in Highland City is very poor. PM2.5 increases to very poor; all other pollutants stay as today. Pollution peaks around 6:00 PM (PM2.5: 100/100). Airmine updates local air quality forecasts four times daily.
Get the full experience in the Airmine app.
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.
In Highland City, lighter traffic and surrounding agricultural land make wind-blown dust and seasonal field activity bigger factors than congestion. Tree cover nearby helps soften the local particulate load to a degree. Broader regional monitoring generally reflects this same baseline, with small local variation. Daily conditions can shift noticeably depending on wind, temperature, and traffic patterns.
Today - 20 September | Pollution peaks at 07:00
AQI:
Very poor
100/100
PM2.5 (fine particles):
Poor
75.2/100
PM10 (coarse particles):
Very poor
100/100
NO2 (nitrogen dioxide):
Good
1.7/100
O3 (ozone):
Good
12.2/100
SO2 (sulfur dioxide):
Good
0.2/100
CO (carbon monoxide):
Good
0.4/100
HCHO (formaldehyde):
Good
1.3/100
PM1 (ultrafine particles):
Good
4.7/100
Levels show the poorest local air quality during the day
Tomorrow - 21 September | Pollution peaks at 18:00
AQI:
Very poor
100/100
PM2.5 (fine particles):
Very poor
100/100
PM10 (coarse particles):
Very poor
100/100
NO2 (nitrogen dioxide):
Good
1.3/100
O3 (ozone):
Good
12.4/100
SO2 (sulfur dioxide):
Good
0.1/100
CO (carbon monoxide):
Good
0.4/100
HCHO (formaldehyde):
Good
1.0/100
PM1 (ultrafine particles):
Good
8.5/100
Pollen forecast in Highland City
View pollen forecastAir quality forecasts for neighbourhoods and landmarks in Highland City
Frequently Asked Questions
Is air quality bad in Highland City right now?
On 20 September 2026, overall air quality in Highland City is very poor. AQI is the main air quality indicator at 100/100. Pollution peaks around 7:00 AM (PM10: 100/100).
Will air quality be worse tomorrow in Highland City?
On 21 September 2026, air quality conditions in Highland City will be similar to today, with AQI forecast at very poor at 100/100. Pollution peaks around 6:00 PM (PM2.5: 100/100).
When is air pollution at its worst in Highland City?
Between November and January, this area tends to be calm and cool -- wind speeds average around 13 km/h and temperatures near 18°C, letting smoke and particulate matter settle near the ground rather than disperse. Expect the warmest conditions from June to August, averaging near 28°C -- hot and sunny enough to drive ground-level ozone formation.
Are air quality levels in Highland City 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.
Want to see air quality forecasts for other cities in United States?
Check air quality in other popular cities:
Data provided by Airmine — Last update: 20 September 2026 at 14:33 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.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.
Get the full experience in the Airmine app.