Worst air pollution Middletown, today and tomorrow
Today (16 July): Air quality in Middletown is fair. PM2.5 and O3 are fair; AQI and NO2 are medium; PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 PM (NO2: 40.3/100).
Tomorrow (17 July 2026): Air quality in Middletown is fair. All pollutants stay as today. Pollution peaks around 1:00 AM (NO2: 43.0/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Middletown's air quality reflects the Great Miami River valley's position in the Ohio Valley airshed, with vehicle emissions from I-75 and the AK Steel (Cleveland-Cliffs) steelworks and manufacturing operations generating elevated industrial PM2.5 alongside primary vehicle sources. The gentle Miami valley terrain provides reasonable dispersal, while the broader Ohio River regional airshed contributes elevated summer ozone from the Cincinnati-Dayton manufacturing corridor throughout the year.
Today - 16 July | Pollution peaks at 23:00
AQI:
Medium
40.3/100
PM2.5 (fine particles):
Fair
21.4/100
PM10 (coarse particles):
Good
16.6/100
NO2 (nitrogen dioxide):
Medium
40.3/100
O3 (ozone):
Fair
37.2/100
SO2 (sulfur dioxide):
Good
8.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.1/100
PM1 (ultrafine particles):
Good
14.4/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 01:00
AQI:
Medium
43.0/100
PM2.5 (fine particles):
Fair
23.5/100
PM10 (coarse particles):
Good
14.6/100
NO2 (nitrogen dioxide):
Medium
43.0/100
O3 (ozone):
Fair
39.1/100
SO2 (sulfur dioxide):
Good
7.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.1/100
PM1 (ultrafine particles):
Good
15.8/100
Pollen forecast in Middletown
View pollen forecastFrequently Asked Questions
Is air quality bad in Middletown right now?
On 16 July 2026, overall air quality in Middletown is fair. O3 is the main pollutant at 37.2/100. Pollution peaks around 11:00 PM (NO2: 40.3/100).
Will air quality be worse tomorrow in Middletown?
On 17 July 2026, air quality conditions in Middletown will be similar to today, with O3 forecast at fair at 39.1/100. Pollution peaks around 1:00 AM (NO2: 43.0/100).
When is air pollution at its worst in Middletown?
Middletown's air quality has a clear seasonal rhythm: spring and autumn tend to bring the cleanest, most stable air, but prolonged summer heat waves are when air quality most often dips into unhealthy territory. Calm, cold winter spells can occasionally allow local pollution to build up before the next weather system clears it.
Are air quality levels in Middletown 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.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 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.
For long term forecasts and maps, see the Airmine app