Worst air pollution Monroe, North Carolina, today and tomorrow
Today (20 September): Air quality in Monroe, North Carolina is moderate. AQI and PM10 are moderate; PM2.5 and NO2 are fair; O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 6:00 AM (PM10: 45.2/100).
Tomorrow (21 September 2026): Air quality in Monroe, North Carolina is moderate. All pollutants stay as today. Pollution peaks around 12:00 AM (PM10: 40.3/100). 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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Air quality in Monroe is driven mostly by humid North Carolina Piedmont air — spring pine pollen brings a heavy yellow dusting. That mix of factors is fairly representative of towns in this part of the country. Checking current readings is still the best way to plan outdoor activity around Monroe.
Today - 20 September | Pollution peaks at 06:00
AQI:
Moderate
45.2/100
PM2.5 (fine particles):
Fair
34.6/100
PM10 (coarse particles):
Moderate
45.2/100
NO2 (nitrogen dioxide):
Fair
34.6/100
O3 (ozone):
Good
11.8/100
SO2 (sulfur dioxide):
Good
1.3/100
CO (carbon monoxide):
Good
0.4/100
HCHO (formaldehyde):
Good
1.8/100
PM1 (ultrafine particles):
Good
4.3/100
Levels show the poorest local air quality during the day
Tomorrow - 21 September | Pollution peaks at 00:00
AQI:
Moderate
40.3/100
PM2.5 (fine particles):
Fair
34.7/100
PM10 (coarse particles):
Moderate
40.3/100
NO2 (nitrogen dioxide):
Fair
23.6/100
O3 (ozone):
Good
17.4/100
SO2 (sulfur dioxide):
Good
1.3/100
CO (carbon monoxide):
Good
0.5/100
HCHO (formaldehyde):
Good
2.3/100
PM1 (ultrafine particles):
Good
4.2/100
Pollen forecast in Monroe, North Carolina
View pollen forecastFrequently Asked Questions
Is air quality bad in Monroe, North Carolina right now?
On 20 September 2026, overall air quality in Monroe, North Carolina is moderate. AQI is the main air quality indicator at 45.2/100. Pollution peaks around 6:00 AM (PM10: 45.2/100).
Will air quality be worse tomorrow in Monroe, North Carolina?
On 21 September 2026, air quality conditions in Monroe, North Carolina will be similar to today, with AQI forecast at moderate at 40.3/100. Pollution peaks around 12:00 AM (PM10: 40.3/100).
When is air pollution at its worst in Monroe, North Carolina?
Monroe sees air quality change through the year. Typically, early spring, before the region's humidity builds back up, often brings some of the freshest air, while hot, humid summer days bring the highest ozone risk, amplified by natural emissions from the dense surrounding forests. Dense forest cover nearby means natural plant emissions add to ozone formation even without much traffic.
Are air quality levels in Monroe, North Carolina 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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