The threat of heavy rain and flooding put a damper on many weekend plans, with some events canceled or postponed.

The Rockville Centre St. Patrick’s Day Parade is set to take place on Saturday. Over the last 27 years, organizers say the parade has always been rain or shine.

"We are here. We're the parade that cares and shares,” said Margaret McGuire, the parade day manager.

Some people questioned the decision to still have the parade.

"Questionable choice, but I get it,” said Joseph Kempton, of Valley Stream. “This town is great with Irish pride and all that."

Organizers of the parade say they're not the only ones deciding whether the parade marches on.

"We have the village involved, the police commissioner, the fire department commissioner involved and everybody has had a bit of input in making this decision,” said Jackie Kerr, the parade president.

Some local businesses say they're concerned about turnout Saturday.

"I'm a little concerned this year about the weather,” said Tom Mahoney, the owner of MacArthur Park Restaurant. “Forecast doesn't look good. We had a tough year last year with the weather. It pretty much rained all day. They're calling for a rain event for tomorrow."

Many hope the parade will still draw people out in spite of the weather.

"People will still come out,” said Matthew Lindsay, the Lindsay's bar. “It may not be as busy as it could be, but we'll deal with it either way."

Other parades have already made other plans. Lindenhurst postponed its parade to March 30. Brentwood canceled its parade. Amagansett's parade is also currently still on for Saturday.

Adventureland's opening day celebration was also expected to take place on Saturday. It tells News 12 it will make a decision in the morning about whether it's still on.

As for Rockville Centre, parade vice president Annie Travers isn’t worried about a little rain.

"The Irish are not, we're not the fair-weather friend kind of people,” she said. “We're sink or swim or rain or shine."

The parade there starts at 12 p.m., and organizers say it may end a little earlier because of the rain.