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  5. Round Rock

Round Rock

Williamson County, Texas

2026-06-19 20:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
72.9
PM2.5
μg/m³
3.5
PM10
μg/m³
9
Weather
  • ℃
  • ℉
30℃
71%
6 kph
4 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • PM10
Places included
CAPCOG Round Rock Brushy Creek W C1620
AQI 32
Data Sources
http://www.airnow.gov/

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