Worst air pollution Mount Rushmore, today and tomorrow
Today (30 August): Air quality in Mount Rushmore is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 8:00 AM (O3: 20.0/100).
Tomorrow (31 August 2026): Air quality in Mount Rushmore is fair. All pollutants stay as today. Pollution peaks around 10:00 AM (O3: 24.2/100). Airmine updates local air quality forecasts four times daily.
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Mount Rushmore National Memorial's air quality benefits from the elevated Black Hills granite mountain position at 1,745 metres, with consistent Rocky Mountain and Black Hills westerly winds providing excellent natural ventilation. Vehicle traffic on US-16A contributes modest seasonal local sources, while the elevated Black Hills forest position and the surrounding Custer State Park wilderness generally maintain excellent to good conditions at this extraordinary presidential monument throughout most of the year.
Today - 30 August | Pollution peaks at 08:00
AQI:
Fair
20.0/100
PM2.5 (fine particles):
Good
4.4/100
PM10 (coarse particles):
Good
1.8/100
NO2 (nitrogen dioxide):
Good
11.2/100
O3 (ozone):
Fair
20.0/100
SO2 (sulfur dioxide):
Good
1.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.9/100
PM1 (ultrafine particles):
Good
2.4/100
Levels show the poorest local air quality during the day
Tomorrow - 31 August | Pollution peaks at 10:00
AQI:
Fair
24.2/100
PM2.5 (fine particles):
Good
6.8/100
PM10 (coarse particles):
Good
2.7/100
NO2 (nitrogen dioxide):
Good
10.4/100
O3 (ozone):
Fair
24.2/100
SO2 (sulfur dioxide):
Good
1.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.6/100
PM1 (ultrafine particles):
Good
3.4/100
Pollen forecast in Mount Rushmore
View pollen forecastFrequently Asked Questions
Is air quality bad in Mount Rushmore right now?
On 30 August 2026, overall air quality in Mount Rushmore is fair. AQI is the main air quality indicator at 20.0/100. Pollution peaks around 8:00 AM (O3: 20.0/100).
Will air quality be worse tomorrow in Mount Rushmore?
On 31 August 2026, air quality conditions in Mount Rushmore will be similar to today, with AQI forecast at fair at 24.2/100. Pollution peaks around 10:00 AM (O3: 24.2/100).
When is air pollution at its worst in Mount Rushmore?
This landmark in Mount Rushmore sees air quality shift through the year — once the harvest dust settles, winter typically offers the cleanest stretch of the year, whereas summer heat waves and the dust of planting and harvest seasons are the main annual concerns. Farm-heavy surrounding land is the main source of the seasonal dust spikes.
Are air quality levels in Mount Rushmore 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: 30 August 2026 at 14:32 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.
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