Sen. Rand Paul (R-Ky.) predicted Monday night that the "fiscal cliff" deal still being worked out between the White House and congressional negotiators will pass both chambers.

But in a sign that some conservatives remain unhappy with the outlines of the proposal, Paul stopped short of backing the plan himself.

"I think it will pass with bipartisan support in the Senate, and the House is a little more unpredictable. ... Once Democrats are on board in the House, it should pass as well," Paul told CNN's Wolf Blitzer in an interview Monday night.

“I personally just don’t like it because I think we’re kicking the can down the road and we aren’t addressing the real crisis in our country, [the debt crisis]," he added.

Paul spoke as a House Republican conference meeting was underway across the Capitol. A vote on a fiscal cliff proposal is still not expected in the lower chamber Monday night, although House Speaker John Boehner (R-Ohio) reminded members via Twitter and in person at the conference meeting not to stray too far from the Capitol complex in case that changes.