Long Island is likely to get its first fall-like chill this weekend as a cold front brings in a chance of showers and a significant drop in temperatures.

In fact, better get ready for freezing conditions in some areas overnight Saturday into Sunday morning and Sunday into Monday morning, the National Weather Service says.

A freeze watch is in effect for eastern Suffolk County for both Saturday and Sunday nights, with temperatures possibly in the high 20s and low 30s.

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A watch is in effect for western Suffolk for just Sunday night, with temperatures in the low 30s a possibility.

Such a watch means that crops and other sensitive vegetation could be killed.

After daily highs in the 60s on Friday, temperatures will drop about 10 degrees on Saturday.

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News 12 Long Island meteorologist Rich Hoffman said two cold fronts -- one Friday during the day and another in the evening -- will cause the dip in temperatures.

"The second one has much colder weather," Hoffman said, "which will leave us with the cold air mass of the season for the weekend."

Friday is breezy, with afternoon winds shifting northwest from 8 to 14 mph.

There's a slight chance for showers late Friday until about 10 p.m.

"Protect the plants Sunday and Monday morning, as some areas will see frost," Hoffman said.

There's a chance that daily record lows could be set Sunday and Monday morning; both record lows are in the low 30s, Hoffman said.

The service said the chillier temperatures are likely to linger from Saturday night through Monday.

With Patricia Kitchen