Toggle navigation
Places
AQI (US)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
English
Français
Deutsch
日本語
한국어
简体中文
繁體中文
North America
United States
Colorado
Douglas County
AQI (US)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
Douglas County
Colorado
2026-10-11 01:00
AQI (US)
Moderate
Pollutants
|
Pollens
PM10
μg/m³
69
PM2.5
μg/m³
3.1
Pollen
4.2
Weather
℃
℃
℉
19℃
32%
10 kph
0 of 11
Historical Data
Hourly
Hourly
Daily
AQI (US)
AQI (US)
Pollen
PM10
PM2.5
Places included
Castle Pines
AQI 17
Castle Rock
AQI 17
Highlands Ranch
AQI 17
Littleton
AQI 58
Lone Tree
AQI 17
Louviers
AQI 17
Parker
AQI 17
Roxborough Park
AQI 17
The Pinery
AQI 17
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
Scan QR Code to Download App
iOS
Google Play
Download APK
Cities Nearby
Castle Rock
AQI 17
Palmer Lake
AQI 42
Castle Pines
AQI 17
Louviers
AQI 17
Roxborough Park
AQI 17
Gleneagle
AQI 19
The Pinery
AQI 17
U.S. Air Force Academy
AQI 37
Lone Tree
AQI 17
Woodland Park
AQI 19
Elizabeth
AQI 39
Air Matters © 2026