Worst air pollution Cumberland, Maryland, today and tomorrow
Today (20 September): Air quality in Cumberland, Maryland is fair. AQI, PM2.5, NO2, O3, and PM1 are fair; PM10, SO2, CO, and HCHO are good. Pollution peaks around 12:00 PM (O3: 28.7/100).
Tomorrow (21 September 2026): Air quality in Cumberland, Maryland is fair. PM1 decreases to good; all other pollutants stay as today. Pollution peaks around 11:00 AM (O3: 35.5/100). 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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Clean appalachian highland air is what shapes air quality most in Cumberland, and elevation and forest cover keep regional air quality favorable. That mix of factors is fairly representative of towns in this part of the country. None of this replaces checking the current forecast before heading outdoors in Cumberland.
Today - 20 September | Pollution peaks at 12:00
AQI:
Fair
28.7/100
PM2.5 (fine particles):
Fair
26.6/100
PM10 (coarse particles):
Good
16.4/100
NO2 (nitrogen dioxide):
Fair
27.8/100
O3 (ozone):
Fair
28.7/100
SO2 (sulfur dioxide):
Good
1.7/100
CO (carbon monoxide):
Good
0.6/100
HCHO (formaldehyde):
Good
3.3/100
PM1 (ultrafine particles):
Fair
20.9/100
Levels show the poorest local air quality during the day
Tomorrow - 21 September | Pollution peaks at 11:00
AQI:
Fair
35.5/100
PM2.5 (fine particles):
Fair
24.6/100
PM10 (coarse particles):
Good
16.2/100
NO2 (nitrogen dioxide):
Fair
24.5/100
O3 (ozone):
Fair
35.5/100
SO2 (sulfur dioxide):
Good
1.7/100
CO (carbon monoxide):
Good
0.6/100
HCHO (formaldehyde):
Good
3.9/100
PM1 (ultrafine particles):
Good
12.6/100
Pollen forecast in Cumberland, Maryland
View pollen forecastFrequently Asked Questions
Is air quality bad in Cumberland, Maryland right now?
On 20 September 2026, overall air quality in Cumberland, Maryland is fair. AQI is the main air quality indicator at 28.7/100. Pollution peaks around 12:00 PM (O3: 28.7/100).
Will air quality be worse tomorrow in Cumberland, Maryland?
On 21 September 2026, air quality conditions in Cumberland, Maryland will be similar to today, with AQI forecast at fair at 35.5/100. Pollution peaks around 11:00 AM (O3: 35.5/100).
When is air pollution at its worst in Cumberland, Maryland?
Like most US cities, Cumberland sees air quality shift from season to season. Typically, the cleanest stretch of the year usually comes in winter, while summer heat waves bring the highest ozone risk, compounded by pollution drifting in from the wider region. Suburban and rural areas generally see less of the persistent traffic-driven pollution that affects the urban core.
Are air quality levels in Cumberland, Maryland 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: 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.
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