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

San Marcos

Hays County, Texas

2026-04-29 21:00

CAQI (Europe)

Low

Pollutants|Pollens

PM2.5

μg/m³

22.2

O3

μg/m³

70.7

Weather

27℃

82%

3 kph

1 of 11

Historical Data

Places included

San Marcos Staples Rd C1675

Data Sources

http://www.airnow.gov/

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