It feels like spring is here, with Thursday's forecast calling for high temperatures in the 50s with clear, sunny skies. But Long Island isn't facing any long term warm-up, the National Weather Service said.
The first day of spring means slightly warmer temperatures, the service's Upton office said.
"Today will be a pretty nice day," said Joey Picca, a meteorologist at the Upton office. "But right now, it's a pretty good bet we'll fall back to below-normal temperatures at the start of next week.
"So people should get out and take advantage of the next few days."
A cold front moves in later Sunday, Picca said, bringing along the potential for snow by midweek.
The opening day of spring rolled in with dense fog early Thursday, a visibility risk for drivers, the service said in a special weather statement. But morning west winds between 6 to 16 mph pushed out the fog by about 8 a.m. Spring officially arrived at 12:57 p.m. Thursday.
Conditions remains clear pretty much through Friday night. Highs Friday are expected to be in the upper 40s.
But Saturday brings a 30 percent chance of morning rain, the service said.
Sunday calls for more sunny skies with a daily high of 45.
But the warm up will be short-lived, the service said, as cold high pressure builds back into the region from Saturday night into Monday.
Translation: There's a chance for snow on Tuesday, beginning with a wintry mix and ending with Wednesday morning flurries.
The exact timing of the snow, however, remains uncertain, Picca said. Chances are Monday will be dry and slightly cooler and then by Tuesday . . .
"There's some indication we'll be stormy early to the middle of next week," Picca said. "Right now, it's much too early to make any definitive calls.
"We could end up cold and dry or we could end up with a heavy rain event.
"And snow is not out of the question."