Vulnerable groups are urged to avoid outdoor activity in multiple parts of southern California due to air pollution.

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

Wildfire smoke doesn’t just cloud the horizon, it can chemically change the air at ground level and in layers of the atmosphere miles above.

Wildfire smoke doesn’t just cloud the horizon, it can chemically change the air at ground level and in layers of the ...

Here's some insight into the weather in Binghamton Aug. 8-10, according to the National Weather Service. Though there could ...

Amid thousands of evacuations and the spread of smoke to the United States, the Canadian armed forces and the Coast Guard ...

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

More smoke and heat is expected across the Pikes Peak Region Thursday as morning temperatures quickly rise, prompting another ...

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

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

Syracuse, N.Y. -- The smoke from Canadian wildfires that has lingered in Upstate New York this week should subside on ...

Wildfire smoke has returned to Pennsylvania, but its impact on air quality so far is far less severe than what the region ...