Worst air pollution Silverthorne, today and tomorrow
Today (9 August): Air quality in Silverthorne is fair. PM2.5, O3, and PM1 are fair; AQI and NO2 are medium; PM10, SO2, CO, and HCHO are good. Pollution peaks around 2:00 AM (NO2: 47.0/100).
Tomorrow (10 August 2026): Air quality in Silverthorne is fair. AQI worsens to fair; NO2 increases to fair; PM1 decreases to good; all other pollutants stay as today. Pollution peaks around 12:00 AM (NO2: 39.9/100). 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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Silverthorne's air quality is shaped largely by high mountain air; usually pristine, with occasional wildfire smoke in dry summers. These factors combine to give Silverthorne a fairly typical seasonal air quality pattern for this part of the country. Local topography and prevailing winds both play a role in how quickly conditions change.
Today - 9 August | Pollution peaks at 02:00
AQI:
Medium
47.0/100
PM2.5 (fine particles):
Fair
27.8/100
PM10 (coarse particles):
Good
10.8/100
NO2 (nitrogen dioxide):
Medium
47.0/100
O3 (ozone):
Fair
35.7/100
SO2 (sulfur dioxide):
Good
17.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.3/100
PM1 (ultrafine particles):
Fair
21.1/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 00:00
AQI:
Fair
39.9/100
PM2.5 (fine particles):
Fair
23.6/100
PM10 (coarse particles):
Good
9.4/100
NO2 (nitrogen dioxide):
Fair
39.9/100
O3 (ozone):
Fair
34.8/100
SO2 (sulfur dioxide):
Good
14.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.3/100
PM1 (ultrafine particles):
Good
19.1/100
Pollen forecast in Silverthorne
View pollen forecastFrequently Asked Questions
Is air quality bad in Silverthorne right now?
On 9 August 2026, overall air quality in Silverthorne is fair. O3 is the main pollutant at 35.7/100. Pollution peaks around 2:00 AM (NO2: 47.0/100).
Will air quality be worse tomorrow in Silverthorne?
On 10 August 2026, air quality conditions in Silverthorne will be similar to today, with AQI forecast at fair at 39.9/100. Pollution peaks around 12:00 AM (NO2: 39.9/100).
When is air pollution at its worst in Silverthorne?
Silverthorne experiences a distinct seasonal swing in air quality: a brief window in autumn tends to bring the year's best air, before winter inversions set in, but summer brings regional wildfire smoke, while winter brings its own inversion-driven pollution episodes. Higher-elevation, more exposed locations generally avoid the worst of the valley inversion episodes.
Are air quality levels in Silverthorne 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: 10 August 2026 at 02:34 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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