1. North America
  2. United States
  3. Colorado

Colorado

United States

2026-06-23 20:00
AQI (India)
Moderately polluted
Pollutants|Pollens
O3
μg/m³
128.3
PM10
μg/m³
31.9
PM2.5
μg/m³
7.2
CO
μg/m³
229.2
NO2
μg/m³
5.3
SO2
μg/m³
2.1
Weather
  • ℃
  • ℉
23℃
20%
15 kph
4 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (India)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • CO
  • NO2
  • SO2
Places included
Adams County
AQI 139
Alamosa County
AQI 29
Arapahoe County
AQI 152
Archuleta County
AQI 155
Baca County
AQI 9
Bent County
AQI 9
Boulder County
AQI 136
Broomfield County
AQI 42
Chaffee County
AQI 3
Cheyenne County
AQI 8
Clear Creek County
AQI 131
Conejos County
AQI 29
Costilla County
AQI 7
Crowley County
AQI 8
Custer County
AQI 5
Delta County
AQI 26
Denver County
AQI 135
Dolores County
AQI 4
Douglas County
AQI 161
Eagle County
AQI 4
El Paso County
AQI 149
Elbert County
AQI 82
Fremont County
AQI 51
Garfield County
AQI 136
Gilpin County
AQI 139
Grand County
AQI 6
Gunnison County
AQI 143
Hinsdale County
AQI 11
Huerfano County
AQI 3
Jackson County
AQI 11
Jefferson County
AQI 155
La Plata County
AQI 143
Lake County
AQI 4
Larimer County
AQI 122
Las Animas County
AQI 4
Lincoln County
AQI 9
Logan County
AQI 11
Mesa County
AQI 136
Mineral County
AQI 5
Moffat County
AQI 15
Montezuma County
AQI 133
Montrose County
AQI 26
Morgan County
AQI 12
Otero County
AQI 8
Ouray County
AQI 22
Park County
AQI 5
Phillips County
AQI 8
Pitkin County
AQI 115
Prowers County
AQI 21
Pueblo County
AQI 158
Rio Blanco County
AQI 10
Rio Grande County
AQI 29
Routt County
AQI 46
Saguache County
AQI 7
San Juan County
AQI 22
San Miguel County
AQI 22
Sedgwick County
AQI 8
Summit County
AQI 6
Teller County
AQI 18
Washington County
AQI 11
Weld County
AQI 122
Yuma County
AQI 8
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 77
Georgetown
AQI 137
Breckenridge
AQI 7
Silverthorne
AQI 5
Frisco
AQI 4
Wildernest
AQI 4
Bailey
AQI 129
Idaho Springs
AQI 131
Copper Mountain
AQI 4
Black Hawk
AQI 139
Winter Park
AQI 76