JOHN YANG: Good evening.

I'm John Yang.

Meteorologist say July has been the world's hottest on record.

But they also say some relief is on the way for many Americans.

More than 100 million Americans are under heat alerts today in parts of the Midwest, Mid Atlantic and the Northeast.

The combination of heat and humidity is making temperatures feel between 101, 110.

In Phoenix, the high temperature has been above 110 for a record 30 straight days.

But there's a possibility that rain this weekend will end that streak.

On the East Coast, a cold front pushing south this weekend is forecast to cool things off next week.

But the South will continue to bake.

Former President Donald Trump made his first public appearance last night since three new felony charges were added to his classified documents case.

At a Republican dinner in Iowa Trump said the charges against him and the investigations that could lead to more charges are politically motivated.

Other Republican candidates also spoke at the dinner but avoided even mentioning the former president's name.

One exception, former Texas Congressman Will Hurd.

WILL HURD, (R), Presidential Candidate: Donald Trump is running to stay out of prison.

And if we elect, I know, I know, I know, I know, I know.

Listen, I know the truth.

The truth is hard.

JOHN YANG: Tonight Trump is to hold a rally in Erie, Pennsylvania.

And in eastern Ukraine, Russian missile strikes killed at least two people in Zaporizhzhia today.

In Dnipro overnight, nine people were injured including two children when an apartment building was hit.

Russian forces again targeted infrastructure for grain shipping today hitting a grain terminal in the southern city of Kherson.

Still to come on PBS News Weekend, a French journalist and an American actor collaborate on a memoir about "Last Tango in Paris" costar Maria Schneider.

And high school graduates, a brief but spectacular take on the future.