Hurricane Matthew has morphed into what meteorologists call a "post-tropical cyclone." As of Monday morning, the storm was well off the Northeast coast and will continue to move out to sea to just off the Canadian Maritimes by Monday evening, the National Weather Service said.

Rain from Matthew that's now falling over the Northeast will come to an end by Monday afternoon into Monday evening, the weather service predicted.

Meanwhile, forecasters are keeping a close watch on Tropical Storm Nicole, now located 900 miles east of Miami. Nicole is expected to strengthen into a Category 2 hurricane with 100 mph winds, potentially threatening Bermuda by the end of the week.

"Swells associated with Nicole and Post-Tropical Cyclone Matthew should increase on Bermuda during the next couple of days," the National Hurricane Center said. "These swells will create dangerous surf conditions and rip currents."

Nicole poses no threat to the U.S.

There are no other tropical storm or hurricane threats anywhere in the Atlantic,Caribbean or Gulf of Mexico Monday, the hurricane center said.