With dark skies blanketing much of the region, some areas could see more rain into the evening on Monday, the National Weather Service said. That could put a damper on Halloween trick or treating.

A flood warning has been extended until 11:45 a.m. on Tuesday for east-central Broward County - mainly because so many roads have standing water. Tuesday otherwise is forecast to see mostly sunny skies and breezy conditions.

A flood watch is in effect until 8 p.m. for Broward and Miami-Dade counties.

The main reason behind all the rain in the past three days: A slow moving cold front, which is expected to clear out of the area by 8 or 9 p.m. on Monday. Until then the atmosphere will remain unsettled, meteorologist Barry Baxter said.

Officially, the weather service puts the chance of rain at 80 percent for the rest of the afternoon and the evening.

This weekend’s downpours amounted to one of the most prolific rain events in South Florida in the past 11 years.

“It's fair to say that this is the most October rainfall we've received over a three-day period since the 2000 ‘No-name storm’ and 1999 Hurricane Irene,” said weather service meteorologist Robert Molleda.

In the past three days, Fort Lauderdale beach received 12.15 inches of rain, Miami Beach, 11.7. Hollywood 10 and Fort Lauderdale-Hollywood International Airport, 6.1.

In Palm Beach County, Palm Beach Gardens received 4.7 inches of rain and Palm Beach International Airport 4.46 inches of rain.

Chuck Lanza, Broward County's emergency management director, said rain washed into 36 homes throughout Broward and that number could rise. Another 50 neighborhoods have water in the streets, he said.

Lanza said he has yet to tabulate an approximate dollar figure.

“We haven’t even thought about that,” he said.

He said several streets in Wilton Manors, Fort Lauderdale, Hollywood and Oakland Park are flooded and advised drivers to use caution when they see high waters.

"It could stall the vehicles or cause a wake and knock it into the house,” he said. 

Weather spotters indicated portions of the Sawgrass Expressway in Tamarac have standing water on all lanes.

Private schools Cardinal Gibbons High School and St. Jerome Catholic School in Fort Lauderdale were closed Monday morning due to severe weather. Broward County public schools are open but are encouraging those who live in severely flooded areas to keep children home.

The American Red Cross opened a shelter at 6 a.m. Monday at Joseph Carter Park, 1450 W. Sunrise Blvd., Fort Lauderdale, for residents displaced by the deluge.

As of 3:30 p.m, 220 people had registered for assistance at the shelter. Cots were being set in the park's gymnasium for people needing a place to stay overnight.

"Most people are coming here to get some food and to figure out what their next move will be," said Red Cross spokeswoman Sofia Santana. "We're anticipating the numbers will increase this evening."