A freeze warning is in effect Friday from 2 to 9 a.m. for eastern Suffolk County, warning of below-freezing temperatures in the lower 30s, the National Weather Service said.

The warning, for the area east of the William Floyd Parkway, indicates the likelihood of below-freezing temperatures, which could lead to conditions that could kill crops and sensitive plants, the service said.

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Temperatures in that area could hit 28 to 32 degrees, according to the News 12 Long Island weather page. Temperatures Friday morning could threaten the daily record low of 32 degrees set in 2002, said News 12 Long Island meteorologist Rich Hoffman.

As for Thursday and Friday daytime temperatures, "the normal average high is 61, and we are looking at highs in the 50s," Hoffman said.

As of just before 4:30 p.m. Thursday, the temperature at Long Island MacArthur Airport hit 51 degrees, the highest so far for the day, the weather service said.

Daily highs in the mid 50s are expected Friday, with the wind shifting slightly to the northwest, blowing 14 to 16 mph.

The weekend appears to be sunny and clear with winds from the west dissipating slightly. Temperatures warm only a bit; daily highs both Saturday and Sunday in the mid to upper 50s are expected.