A freeze warning for Suffolk County expired at 9 a.m. as temperatures, which hit a record low this morning in Islip, are set to tick back up into the 50s.

The National Weather Service warned that subfreezing temperatures in the upper 20s and lower 30s could kill crops and other vegetation. The warning also affected coastal Connecticut and portions of northeastern New Jersey.

Temperatures on Saturday morning hit an all-time low of 32 degrees in Islip, breaking the previous record of 36 degrees set in 2012, said Jay Engel, a weather service meteorologist based in Upton.

It was even colder in the Pine Barrens in eastern Suffolk where temperatures dropped to the mid 20s early Saturday, Engel said.

But the forecast for the weekend looks brighter with temperatures expected to reach the mid to upper 50s before dropping to the upper 30s and lower 40s overnight. The normal high is 61.

"We get lots of sunshine today with maybe just a few cirrus clouds as an area of low pressure passes south of Long Island today into tomorrow," said News 12 Long Island meteorologist Samantha Augeri. "By tomorrow afternoon there's a slight chance of sprinkles or a passing shower with a weak weather disturbance. Otherwise, the weekend is dry."

Sunday's forecast calls for high temperatures in the upper 60s.

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A better chance of showers will come Monday afternoon, Augeri said, but Long Islanders can expect temperatures to warm up midweek, rising into the upper 60s.