A form of harmful air pollution that often can't be plainly observed is now being tracked with a groundbreaking new tool ...

However, areas of the Southwest, including parts of Texas, New Mexico, and Arizona, as well as parts of New York, Connecticut ...

"While La Niña is currently expected to remain weak, it could still influence the 2025-26 winter season," the NWS said.

Fall freezes are arriving later across the U.S. according to a new report; here’s which cities have seen the longest delays.

States across the central and eastern U.S. are under extreme heat watches and warnings as the areas face a dangerous heat wave throughout the first half of the week, according to the National Weather ...