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  5. New Castle

New Castle

Garfield County, Colorado

2026-06-25 22:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
111.1
PM10
μg/m³
13.7
PM2.5
μg/m³
9.5
Weather
  • ℃
  • ℉
30℃
52%
4 kph
5 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • PM2.5

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