San Marcos Real-time Air Quality Index (AQI) & Pollen Report - Air Matters

San Marcos

Hays County, Texas

2026-05-15 15:00

AQI (US)

Good

Pollutants|Pollens

O3

μg/m³

75

PM2.5

μg/m³

2.2

Weather

26℃

74%

26 kph

4 of 11

Historical Data

Places included

San Marcos Staples Rd C1675

Data Sources

http://www.airnow.gov/

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