A cold front bringing unseasonably chilly temperatures is expected Monday across Long Island, meteorologists said.
Jay Engle, a meteorologist with the National Weather Service in Upton, said it won't be record-breaking cold, but some weather advisories will be in effect due to the temperature dip.
The overnight low was expected to drop into the mid-30s, with a frost advisory in effect Monday from 3 a.m. to 9 a.m. for Nassau County, with Suffolk County getting a freeze warning for the same time.
"A freeze warning means you're going to have a higher likelihood and more widespread frost and you're going to hit 32 degrees," Engle said. "A frost advisory basically means you're going to be approaching freezing, but a freeze warning means that we're expecting widespread 32 degrees or lower."
The rest of the week will also be chilly but dry. Highs will be in the mid-50s on Monday. Monday night will be mostly cloudy with a low of 44. Tuesday brings a slight chance of showers after 2 p.m. with otherwise partly cloudy skies and a high of about 60 and a low of 44. Wednesday is expected to be mostly sunny with a high of 55 and a low of 36.
Thursday brings lots of sun and a high of 46 and a low of 33, with Friday being about the same, give or take a few degrees on the low and high.
It will be about 55 and partly cloudy on Saturday.
Sunday morning showers cleared to make way for clearing skies with Sunday's high temperature reaching 51, Engle said.