1. North America
  2. United States
  3. Colorado
  4. Larimer County
  5. Fort Collins

Fort Collins

Larimer County, Colorado

2026-05-12 15:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
109.3
PM10
μg/m³
40
PM2.5
μg/m³
6.3
CO
μg/m³
125
Weather
  • ℃
  • ℉
21℃
32%
16 kph
7 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • CO
Places included
Fort Collins - CSU - 708 S. Mason St.
AQI 48
Fort Collins - West - Laporte Ave. & Overland Tr.
AQI 48
Ft. Collins - CSU Facilities
AQI 38
Data Sources
http://www.airnow.gov/

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