It all depends on location, forecasters said, with some seeing cooling as early as Tuesday. But more relief is coming later in the week.

The heat wave is expected to continue into the week putting millions of Americans in the Midwest and Northeast under heat warnings and advisories.

A record-setting heat wave was continuing to blast most of the eastern U.S. June 24, forecasters said.

It all depends on location, forecasters said, with some seeing cooling as early as Tuesday. But more relief is coming later in the week.

A major heat wave will persist through the end of the week in some areas of the country. Here's what to do while the temperatures remain high.