TODAY

The heat wave is finally over and making way for rain and millions across the country waking up to a deluge sparking fears of flash flooding in some areas. Also, the timing of these storms could not be worse for millions making their way home after the July 4th weekend. Plus, President Trump preparing for a high-stakes trip to Turkey for a NATO summit following a weekend filled with patriotism and politics. And, millions filled the streets of Tehran overnight as funeral processions began for the country's late supreme leader.

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TODAY Correspondent Brian Cheung breaks down the Fourth of July by the numbers in honor of America's 250th birthday celebration. Plus, modern-day Renaissance man Terry Crews sits down with the Third Hour ahead of hosting the 50th annual Macy's Fourth of July Fireworks special to chat about all the new projects he's "cooking" up. And The Toy Insider's Ali Mierzejewski shares the hottest summer toys to keep kids cool and entertained all season long. Country superstar Maren Morris discusses her special-edition album, "Hero: A Second Wind," and hitting the road for her "Dream Girl" tour.

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TODAY heads to the New York Public Library for an inside look at a remarkable copy of the Declaration of Independence, handwritten by Thomas Jefferson himself — one of many historical documents on display as part of the library's America 250 celebration. Plus, John Oliver makes a guest appearance on the hit series "General Hospital," and Travis and Jason Kelce tease the latest episode of their podcast, "New Heights," featuring surprise guest Prince William.

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A scorching heat wave continues to blanket the Northeast as millions of Americans endure triple-digit temperatures ahead of the holiday weekend. AAA says its domestic travel forecast is expected to surpass last year’s record, with 72.2 million people projected to take to the roads and skies for Independence Day. Three more teams advanced to the World Cup Round of 16 after another day of captivating matches, with superstar Lionel Messi set to take the pitch tonight. A-listers arrive in New York City ahead of Taylor Swift and Travis Kelce’s top-secret Madison Square Garden nuptials.

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NBC News medical contributor Dr. John Torres explains ways to stay safe and healthy during all of your summer travel. Also, NBC's Ryan Chandler gets a hands-on look of Martin Guitars and how this family has built acoustic guitars generation after generation. Plus, Dylan talks with hosts of the popular podcast "The Viall Files" Nick Viall and Natalie Joy about parenting in the modern age for her podcast "The Parent Chat." And, Shop TODAY Fashion and Lifestyle Contributor Melissa Garcia drops by to share ways to pack smarter and save space in your luggage ahead of your summer vacations.

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