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Houston-Galveston-Brazoria Air Quality Index

Realtime Air Quality Data Realtime Location: Houston-Galveston-Brazoria, TX Issue Date: 11/21/25 10:00 PM CST Current Air Quality Index 56 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: Moderate AQI Value: 56 Type: Ozone Good - 32 AQI - Particle Pollution (10 microns) Index: Good AQI Value: 21 Last Update:Fri, 21 Nov 2025 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: 11/21/2025 Type: Particle Pollution (2.5 microns) Index: Moderate AQI Value: 51-100	Date: 11/22/2025 Type: Particle Pollution (2.5 microns) Index: Moderate AQI Value: 51-100
Last Update:Fri, 21 Nov 2025 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