Don’t expect the Summer of Hell to end by Labor Day.

Amtrak’s chief on Wednesday brought up the possibility of “weekend outages” of service at Penn Station after the holiday and into the fall if all the track work isn’t finished by the Sept. 1 deadline.

“If things start to look like they’re running behind at the end, we have the ability to . . . finish out whatever we don’t get to in subsequent weekend outages,” Amtrak CEO Wick Moorman said in a speech before the National Press Club.

Moorman said he still hoped that all the work to the decrepit transit hub — which was hit by a series of derailments earlier this year — would remain a mere Summer of Hell, as there is now enough equipment and skilled workers on hand to finish the job.

“We’ve done an exceptional and extraordinary amount of planning on the material side and we know it all fits, and we have a lot of skilled people,” said Moorman.

In addition to the track repairs, Amtrak still has to make plans at a later time to fix the aging signal and power systems.

The tracks at Penn Station, owned by Amtrak but mostly used by the Long Island Rail Road and New Jersey Transit, are so old that they are falling apart. The rails have been the source of three derailments and numerous other incidents in the past few months.

Each derailment caused severe train delays and cancellations.

The work, which started this week, has led to massive changes to train schedules, forcing commuters to radically alter their travel plans each day to avoid delays.

MTA Chairman Joe Lhota said on Monday that the agency is counting on Amtrak to finish all of the track repairs by Labor Day and that he is watching carefully to make sure Amtrak sticks to its schedule.