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  4. Hays County
  5. San Marcos

San Marcos

Hays County, Texas

2026-05-17 17:00
AQI (US)
Moderate
Pollutants|Pollens
PM2.5
μg/m³
22.9
O3
μg/m³
62.1
Weather
  • ℃
  • ℉
28℃
77%
24 kph
6 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
Places included
San Marcos Staples Rd C1675
AQI 77
Data Sources
http://www.airnow.gov/

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