Worst air pollution Sterling, today and tomorrow
Today (9 August): Air quality in Sterling is poor. AQI and NO2 are poor; O3 is fair; PM2.5 and PM1 are medium; PM10, SO2, CO, and HCHO are good. Pollution peaks around 11:00 PM (NO2: 67.6/100).
Tomorrow (10 August 2026): Air quality in Sterling is poor. PM10 increases to fair; all other pollutants stay as today. Pollution peaks around 10:00 PM (NO2: 63.5/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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The dominant factor behind Sterling's air quality is Plains agricultural dust; spring planting and harvest bring short bursts of elevated dust. Sterling doesn't see much year-to-year variation in this basic pattern, though individual weeks can differ. As with most US destinations, conditions here are best understood by season rather than by a single yearly average.
Today - 9 August | Pollution peaks at 23:00
AQI:
Poor
67.6/100
PM2.5 (fine particles):
Medium
41.2/100
PM10 (coarse particles):
Good
13.8/100
NO2 (nitrogen dioxide):
Poor
67.6/100
O3 (ozone):
Fair
38.1/100
SO2 (sulfur dioxide):
Good
12.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.9/100
PM1 (ultrafine particles):
Medium
43.5/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 22:00
AQI:
Poor
63.5/100
PM2.5 (fine particles):
Medium
44.3/100
PM10 (coarse particles):
Fair
20.5/100
NO2 (nitrogen dioxide):
Poor
63.5/100
O3 (ozone):
Fair
36.1/100
SO2 (sulfur dioxide):
Good
11.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.8/100
PM1 (ultrafine particles):
Medium
47.0/100
Pollen forecast in Sterling
View pollen forecastFrequently Asked Questions
Is air quality bad in Sterling right now?
On 9 August 2026, overall air quality in Sterling is poor. AQI is the main air quality indicator at 67.6/100. Pollution peaks around 11:00 PM (NO2: 67.6/100).
Will air quality be worse tomorrow in Sterling?
On 10 August 2026, air quality conditions in Sterling will be similar to today, with AQI forecast at poor at 63.5/100. Pollution peaks around 10:00 PM (NO2: 63.5/100).
When is air pollution at its worst in Sterling?
Air quality in Sterling shifts across the year: the shoulder seasons of spring and fall typically offer the most stable, cleanest conditions, but summer brings regional wildfire smoke, while winter brings its own inversion-driven pollution episodes. Valley and basin locations are especially prone to these winter inversion episodes compared to more exposed, higher terrain.
Are air quality levels in Sterling 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.
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Data provided by Airmine — Last update: 9 August 2026 at 20:27 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.
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