Meteorologist David Stark in Upton said after the cold front arrived from Canada, residents of Long Island would see a high in the 50s for Sunday. There is also a chance of light rain, especially in late afternoon and evening.
Temperatures this time of year on Long Island are normally in the mid-60s "so we may be close to 10 degrees below the normal high temperature" on Sunday, he said.
It should clear overnight with some lingering clouds Monday with a high near 60.
There could be a passing shower Tuesday morning and the temperature should warm into the low or mid-60s.
Another cold front is expected to come through the area on Wednesday but the temperatures will continue to rise with a high in the upper 60s with a chance of a shower.
Temperatures will drop back to a high in the lower 60s on Thursday, Friday and Saturday, with no rain, Stark said.