The overcast morning will develop into full cloud cover on Long Island Saturday afternoon as a system of rain settles in, expected to dump about a half-inch of rain or more, according to the National Weather Service.
“Clouds will thicken up this afternoon, and rain should develop from west to east sometime after 2 p.m.,” said Carlie Buccola, a meteorologist with the service’s Upton bureau.
High temperatures will be in the low 60s all weekend long, which is a few degrees below the normal of 69, Buccola said. The temperature was 54 degrees around 8 a.m. Saturday.
“Conditions will continue to deteriorate into the afternoon, Buccola said. “Rain will continue into the evening, with higher amounts in the East End.”
Matt Hammer, a meteorologist with News 12 Long Island, described the weekend’s weather as a far departure from the sunny day the Island had Friday, where the mercury topped out at 74 degrees at Long Island MacArthur Airport in Ronkonkoma.
“We had a few breaks of sun this morning, but the clouds are quickly building,” Hammer said Saturday morning. “The rain is starting to break up as it moves toward Long Island because we have dry air overhead, but we’re still looking at showers this afternoon, turning into steady showers tonight and a few brief downpours into early tomorrow morning.”
The showers will cease around 4 a.m., Buccola said, due to a coastal low that’s developing, which will move off the coast just southeast of the Island.
Clouds will persist Sunday, bringing with them a chance of showers, Buccola said. Monday and Tuesday appear to have the same weather pattern.
“The good news is from Wednesday through Friday, it looks like it’ll be sunny, temperatures rising into the 70s,” Buccola said.
The temperatures will creep up to 10-15 degrees above normal by the end of the week, Hammer said.
“The big story looking ahead is that by Wednesday, the weather will begin to warm up and by the end of the week, we’ll be jumping into the 80s,” Hammer said. “We’ll have summer weather going into Memorial Day weekend.”