The storm, which hit Florida Friday as a Category One hurricane before weakening, is expected to move north just off the east coast.
Forecasters expect it to linger next to North Carolina on Saturday while a high-pressure ridge slows its movement, meaning partly sunny skies in New York City to start the weekend with a high in the mid- to upper 70s.
But then things start to look grim.
The wind is expected to start picking up Sunday morning, with rain moving into the area Sunday afternoon and a potential for heavy downpours starting that night.
Hermine will then “linger” off the coast of New Jersey for several days, according to the latest storm model.
That could bring 30- to 35-mile-per-hour winds to the city with torrential downpours on Monday.
There could also be coastal flooding, high surf and strong rip currents, the spokeswoman added.
New Yorkers will not be allowed to swim in the city's public beaches on Sunday when the rip tides are expected to be the worst in 15 years, Mayor de Blasio announced Friday.
The ridge could keep the storm moving slowly off the coast for several days, which would give New Yorkers potential tropical storm conditions through early Wednesday morning.
Things are looking better for Wednesday afternoon, with the sun returning and highs back in the mid-80s.
The MTA canceled the majority of its scheduled subway maintenance over the weekend because of the oncoming storm.
— Additional reporting by Kathleen Culliton