Highest air pollution Houston, today and tomorrow
Today (27 June): Air quality in Houston is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 AM (O3: 20.5/100).
Tomorrow (28 June 2026): Air quality in Houston is good. AQI improves to good; O3 decreases to good; all other pollutants stay as today. Pollution peaks around 11:00 PM (PM2.5: 19.9/100). 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
Houston's air quality is shaped by the petrochemical complex along the Ship Channel, one of North America's largest industrial emission sources, combined with high vehicle dependency across a vast sprawling metro. Gulf sea breezes provide afternoon ventilation along the coast, while inland areas experience the highest ozone and PM2.5 readings.
Today - 27 June | Pollution peaks at 07:00
AQI:
Fair
20.5/100
PM2.5 (fine particles):
Good
12.1/100
PM10 (coarse particles):
Good
18.5/100
NO2 (nitrogen dioxide):
Good
0.0/100
O3 (ozone):
Fair
20.5/100
SO2 (sulfur dioxide):
Good
0.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.1/100
PM1 (ultrafine particles):
Good
1.6/100
Levels show the poorest local air quality during the day
Tomorrow - 28 June | Pollution peaks at 23:00
AQI:
Good
19.9/100
PM2.5 (fine particles):
Good
19.9/100
PM10 (coarse particles):
Good
19.4/100
NO2 (nitrogen dioxide):
Good
0.0/100
O3 (ozone):
Good
18.3/100
SO2 (sulfur dioxide):
Good
0.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.1/100
PM1 (ultrafine particles):
Good
4.0/100
Pollen forecast in Houston
View pollen forecastFrequently Asked Questions
Is air quality bad in Houston right now?
On 27 June 2026, overall air quality in Houston is fair. AQI is the main air quality indicator at 20.5/100. Pollution peaks around 7:00 AM (O3: 20.5/100).
Will air quality be worse tomorrow in Houston?
On 28 June 2026, air quality conditions in Houston will be better than today, with AQI forecast at good at 19.9/100. Pollution peaks around 11:00 PM (PM2.5: 19.9/100).
Are air quality levels in Houston 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: 27 June 2026 at 18:37 CET (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
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team