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 ...

The free African American population settled primarily along the Eastern seaboard and especially in the cities of the northern United States.

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 ...

The “Eagle Map of the United States, Engraved for Rudiments of National Knowledge” first appeared in an 1833 atlas published by E.L. Carey and A. Hart of Philadelphia.

Some states in the Southeast are under a freeze warning tonight as temperatures could drop to 23 degrees.

Another round of showers and thunderstorms moved across the Mid-Atlantic Tuesday after intense rain set off dangerous flash ...

More infectious Covid-19 variants have emerged around the world, and experts are saying the United States must adapt to a changed pandemic playing field.

A team of researchers is working to understand the details of the climate for the eastern portion of the United States from the Miocene, which unfortunately is a blank spot on paleo-climate maps ...