The National Weather Service reported an air quality alert at 9 a.m. on Thursday in effect until 8 p.m. for Westmoreland Ridges and Fayette Ridges as well as Butler, Beaver, Allegheny, Armstrong, ...

A new analysis shows that climate change is causing the number of extremely hot summer days to rise in most major U.S. cities ...

A legendary U.S. weatherman has issued a strong "warning" for a prominent U.S. state on Thursday morning. Jim Cantore has seen a lot of bad storms over the years. The iconic U.S. weatherman has ...