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Special Air Quality Statement
An Air Quality Health Advisroy has been issued for eastern portions of Yuma and Kit Carson Counties due to multiple wildfires in this area.
For More info, click HERE.

A high wind event along the northern Front Range urban corridor could affect air quality monitoring operations and web reporting systems on Wednesday. In the event of a power and data outage, we will bring these systems back up as soon as possible and update air quality forecasts accordingly.

Colorado Air Quality Summary

Avisos en Español
About the Air Quality Index (AQI)
Today's Air Quality Summary (detailed)
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Air Quality Advisories

Other Areas:


Air Quality Health Advisory for Wildfire Smoke

Avisos en Español para todo el Estado (Colorado)

Issued for eastern portions of Yuma and Kit Carson Counties
Issued at 10:51 PM MST, Wednesday, December 17, 2025

Issued by the Colorado Department of Public Health and Environment


Affected Area: eastern Yuma and Kit Carson Counties. Locations include, but are not limited to Wray, Vernon, Idalia, and Burlington.

Advisory in Effect: 10:30 PM MST, Wednesday, December 17, 2025 to 9:00 AM MST, Thursday, December 18, 2025

(click for more...)

Key
Air Quality Index Scale

Visibility Standard Index

What is an Action Day?

Current - Air Quality Summary
install on your website... Current Air Quality Conditions
Highest AQI So Far Today


Denver's current visibility: Not Available
Ft. Collins' current visibility: Not Available
(VSI is calculated between 12PM and 4PM local time)


More about air quality forecasting regions...
Forecast - Air Quality Summary
Wednesday Ozone Fine Particulates Carbon Monoxide Nitrogen Dioxide
   Denver - Boulder  Good Good Good Good
   Colorado Springs  Good Good Good Not Available
   Ft. Collins  Good Good Good Good
   Greeley  Good Moderate Good Good
   Grand Junction  Good Moderate Not Available Not Available
   Pueblo  Good Good Not Available Not Available
   Aspen  Good Moderate Not Available Not Available
   Colorado River Valley  Good Good Not Available Not Available
   Four Corners Area  Good Good Not Available Not Available
   Lamar  Not Available Good Not Available Not Available
   San Luis Valley  Not Available Moderate Not Available Not Available
   Steamboat Springs  Not Available Good Good Not Available
   Telluride  Not Available Good Not Available Not Available
Thursday Ozone Fine Particulates Carbon Monoxide Nitrogen Dioxide
   Denver - Boulder  Good Good Good Good
   Colorado Springs  Good Good Good Not Available
   Ft. Collins  Good Good Good Good
   Greeley  Good Good Good Good
   Grand Junction  Good Moderate Not Available Not Available
   Pueblo  Good Good Not Available Not Available
   Aspen  Good Good Not Available Not Available
   Colorado River Valley  Good Good Not Available Not Available
   Four Corners Area  Good Good Not Available Not Available
   Lamar  Not Available Good Not Available Not Available
   San Luis Valley  Not Available Moderate Not Available Not Available
   Steamboat Springs  Not Available Good Good Not Available
   Telluride  Not Available Good Not Available Not Available

Denver's expected visibility (Wednesday): Good
Denver's expected visibility (Thursday): Good