San Antonio vs McAllen Air Quality Comparison
Which city has cleaner air right now, from the latest EPA AirNow AQI
As of November 8, 2026, McAllen, TX has cleaner air than San Antonio, TX — AQI 43 (Good) vs 54 (Moderate), a gap of 11 AQI points in the latest EPA AirNow observations. Lower AQI means cleaner air. San Antonio's reading is driven by PM2.5 and McAllen's by PM2.5.
San Antonio, TX
Moderate
McAllen, TX
Good
Summary
McAllen has 11 points better air quality
McAllen has an AQI of 43 compared to 54
Extra Protection for San Antonio Homes
Air quality in San Antonio is moderate (AQI 54), with fine particles (PM2.5) the main concern. A True-HEPA purifier gives sensitive groups — kids, seniors and anyone with asthma or allergies — cleaner air indoors on days like today.
Compare top-rated True-HEPA purifiers:
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