A mighty heat dome continues to scorch vast swathes of the Northeast, mid-Atlantic, and central United States this week, ...

Hurricane prediction is getting good. Good enough to matter, good enough to warn people about the little things as well as ...

The first tropical storm of the Atlantic hurricane season has weakened into a post-tropical cyclone, according to the National Hurricane Center. The system was tagged on Sunday as an area of interest ...

Happening now: Unpleasant muggy morning with lots of sunshine. Temperatures may climb even faster than Monday. Afternoon heat ...

Get the latest news headlines and top stories from NBCNews.com. Find videos and news articles on the latest stories in the US.