The National Weather Service urged people to avoid travel if a flash flood warning was in place for their area.

At least nine states along the East Coast faced summer swelter on Monday, and the steamy weather is expected to persist on ...

Maps show where extreme humidity and 90- or 100-degree temperatures will affect about 255 million people across the United States.

Relatively low humidity is in town. Rain chances are very low through the holiday weekend with near normal temperatures.

A brutal heat wave across the eastern United States trapped millions of people in sweltering air this week with record-high temperatures.

Temperatures will surge well into the 90s across the Northeast and Mid-Atlantic early next week as another wave of hot and ...

View the latest weather forecasts, maps, news and alerts on Yahoo Weather. Find local weather forecasts for Seaboard, United States throughout the world ...

Extreme heat is impacting states across the country. See maps of high temperature forecasts and heat index levels.

Two people died in New Jersey after their car was swept away. Public transit was largely running normally on Tuesday morning, hours after water flooded subway stations and damaged highways.

Seattle's downtown waterfront experience has dramatically improved. Here’s a guide to Overlook Walk, waterfront restaurants, ...

One new study identifies a 17 percent increase in the destructive potential of the strongest nor’easters, while another ...