The phrase "a few weeks remain" is correct and usable in written English.
You can use it when indicating that a certain period of time is left before a deadline or event.
Example: "With the project deadline approaching, I realize that only a few weeks remain to finalize our work."
Alternatives: "a couple of weeks left" or "several weeks are left".
Only a few weeks remain before the busy television-watching season slows down and summer reruns begin.
The iPhone class met for the last time on Thursday evening, and only a few weeks remain until the exhibition.
Aug. 23-25 WHY Only a few weeks remain for the "Yes Yoko Ono" exhibition at the San Francisco Museum of Modern Art.
Only a few weeks remain before the midterm elections, after which a new federal law will prohibit parties from collecting such money.
Aug. 21 WHY Only a few weeks remain on Bob Dylan and Willie Nelson's concert tour of minor-league baseball stadiums.
San Diego WHEN Oct. 3-5 WHY Only a few weeks remain for La Jolla Playhouse's production of "Beauty," a modern take on the "Sleeping Beauty" tale.
With just a few weeks remaining in the current legislative session, the stadium proposal is in danger of becoming the latest to fail in the past few years.
With only a few weeks remaining until the election, it's still not clear how Mitt Romney would manage our jobs crisis.
First, they say, Mr. Torricelli dropped out of the Senate with only a few weeks remaining before the election, which left his replacement little time to campaign and raise money -- though Frank R. Lautenberg managed to pull the party out of a nosedive and defeat the Republican candidate, Douglas Forrester.
There's only a few weeks remaining until Election Day, and the barrage of attacks against the president are guaranteed to multiply.
With only a few weeks remaining in the current school year, New York City has launched a multi-million dollar advertising campaign that asks, "It's 9 00 AM Do You Know Where Your Kids Are?" Prior attempts at reducing truancy have included celebrity messages and "robo" calls made to the homes of the chronically absent by famous rappers to encourage attendance.
