Dingell, 86, took office Dec. 13, 1955, after being elected to succeed his father.
Plans called for Dingell to have lunch with former staffers and dinner with a few family friends, the Detroit Free Press reported.
The previous record for longevity in Congress was held by Sen. Robert C. Byrd, D-W.Va., who died in 2010 at age 92.
"John has always worked tirelessly for people," President Barack Obama said in a statement. "He has helped pass some of the most important laws of the last half-century, from Medicare to the Civil Rights Act to the Clean Air Act to the Affordable Care Act.
"Michelle and I send our warmest wishes to John and his family, and I look forward to congratulating him in person at the White House next week," Obama said.
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