More heavy rain and flooding will cause dangerous conditions for areas stretching from the Mid-Atlantic back into the Ohio and Tennessee valleys.  

TEXAS TOWN DECLARES 'WATER EMERGENCY,' TELLS RESIDENTS THAT IT COULD RUN OUT OF WATER

7-day rain forecast

Rainfall forecast across the U.S. over the next week (Credit: Fox News)

Some of these regions have experienced record-setting rain over the last few days.

US severe storm threats

Severe storm threats in the eastern U.S. on Friday (Credit: Fox News)

Rain and storms across the Southwest and into the Plains will prompt flood advisories.

Southwest flood alerts

Flood alerts in the Southwest through Saturday afternoon (Credit: Fox News)

Excessive heat hangs on over the weekend for the Northwest, and the hot humid air remains in place for the Deep South.  

Northwest heat

Forecast high temperatures on Saturday in the Northwest (Credit: Fox News)

CLICK HERE TO GET THE FOX NEWS APP

Relatively cooler air will move into the Plains over the next few days, bringing some relief.