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  5. Round Rock

Round Rock

Williamson County, Texas

2026-06-03 01:00
AQI (US)
Moderate
Pollutants|Pollens
PM2.5
μg/m³
11
PM10
μg/m³
41
O3
μg/m³
70.7
Weather
  • ℃
  • ℉
25℃
78%
10 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • PM10
  • O3
Places included
CAPCOG Round Rock Brushy Creek W C1620
AQI 31
Data Sources
http://www.airnow.gov/

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