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Houston-Galveston-Brazoria Air Quality Index

Realtime Air Quality Data Realtime Location: Houston-Galveston-Brazoria, TX Issue Date: 10/18/26 11:00 AM CDT Current Air Quality Index 38 Action Day Alert: There are currently no Ozone Action Day alerts for Houston-Galveston-Brazoria, TX Realtime AQI - Pollutant Details Type: Particle Pollution (2.5 microns) Index: Good AQI Value: 38 Type: Ozone Good - 15 AQI - Particle Pollution (10 microns) Index: Good AQI Value: 23 Last Update:Sun, 18 Oct 2026 10:15:01 CST

0-50 Good 51-100 Moderate 101-150 Unhealthy for Sensitive Groups 151-200 Unhealthy 201-300 Very Unhealthy 301-500 Hazardous

Air Quality Forecast
Forecast Location: Houston-Galveston-Brazoria, TX Forecast Agency: Texas Commission on Environmental Quality
Two Day Forecast
Day One Forecast	Day Two Forecast
Date: 10/18/2026 Type: Ozone Index: Moderate AQI Value: 51-100	Date: 10/19/2026 Type: Ozone Index: Moderate AQI Value: 51-100
Last Update:Sun, 18 Oct 2026 10:15:03 CST

Current Hourly Air Quality Index Map


Today's Air Quality Forecast


Today's Air Quality Timed Animation

Script courtesy of  Michael Holden of Relay Weather. Data courtesy of Airnow.gov