Weather across Colorado competed for most dramatic forecast on Saturday as red flag conditions challenged firefighters on the ...

The National Weather Service in Boulder has issued an air quality alert for Rio Blanco, Eagle, Summit, Garfield, Pitkin, ...

The National Weather Service said the alert will be in effect until Sunday morning in the Santa Clarita Valley and Saturday ...

Dangerous fire conditions, soaring temperatures and smoky skies across Colorado prompted severe weather alerts for parts of ...

Smoke from ongoing wildfires across Canada continued to drift into parts of the United States on Wednesday, causing hazy ...

Smoke produced by hundreds of wildfires burning across Canada has drifted thousands of miles and nearly circled the entire ...

The smoky air poses potential health risks for people including children, older adults and those with heart or lung disease.

Anyone who might be especially vulnerable to the effects of air pollution should limit their outdoor activities.

Skies across Massachusetts could remain hazy on Wednesday, but this could also soon change as possible thunderstorms and ...

Wildfire smoke from Canada continues to impact air quality across central Pennsylvania, with hazy conditions expected through ...