1. North America
  2. United States
  3. Colorado

Colorado

United States

2026-09-16 13:00
AQI (US)
Good
Pollutants|Pollens
PM10
μg/m³
41.6
PM2.5
μg/m³
4
O3
μg/m³
35.4
NO2
μg/m³
20.1
CO
μg/m³
375
SO2
μg/m³
1.4
Weather
  • ℃
  • ℉
7℃
78%
3 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM10
  • PM2.5
  • O3
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 81
Alamosa County
AQI 14
Arapahoe County
AQI 81
Archuleta County
AQI 10
Baca County
AQI 17
Bent County
AQI 21
Boulder County
AQI 26
Broomfield County
AQI 81
Chaffee County
AQI 23
Cheyenne County
AQI 19
Clear Creek County
AQI 20
Conejos County
AQI 14
Costilla County
AQI 17
Crowley County
AQI 17
Custer County
AQI 29
Delta County
AQI 20
Denver County
AQI 81
Dolores County
AQI 13
Douglas County
AQI 81
Eagle County
AQI 9
El Paso County
AQI 26
Elbert County
AQI 19
Fremont County
AQI 28
Garfield County
AQI 9
Gilpin County
AQI 31
Grand County
AQI 13
Gunnison County
AQI 12
Hinsdale County
AQI 11
Huerfano County
AQI 24
Jackson County
AQI 14
Jefferson County
AQI 73
La Plata County
AQI 15
Lake County
AQI 13
Larimer County
AQI 28
Las Animas County
AQI 22
Lincoln County
AQI 17
Logan County
AQI 20
Mesa County
AQI 24
Mineral County
AQI 38
Moffat County
AQI 12
Montezuma County
AQI 20
Montrose County
AQI 20
Morgan County
AQI 17
Otero County
AQI 17
Ouray County
AQI 9
Park County
AQI 41
Phillips County
AQI 22
Pitkin County
AQI 13
Prowers County
AQI 31
Pueblo County
AQI 31
Rio Blanco County
AQI 16
Rio Grande County
AQI 14
Routt County
AQI 8
Saguache County
AQI 32
San Juan County
AQI 9
San Miguel County
AQI 9
Sedgwick County
AQI 20
Summit County
AQI 14
Teller County
AQI 26
Washington County
AQI 19
Weld County
AQI 58
Yuma County
AQI 22
Data Sources
http://www.airnow.gov/

Get the App

Scan QR Code
Air Matters
Realtime broadcasting air quality information on your phone for more than 180 countries.

iPhone, iPad

Android

Cities Nearby

Keystone
AQI 16
Georgetown
AQI 19
Breckenridge
AQI 14
Silverthorne
AQI 14
Frisco
AQI 12
Wildernest
AQI 13
Bailey
AQI 26
Idaho Springs
AQI 26
Copper Mountain
AQI 12
Black Hawk
AQI 31
Winter Park
AQI 16