Temperatures more common to January open the New Year, but conditions on Long Island will be relatively dry and sunny, the National Weather Service said Friday.

After Long Island’s warmest December on record, New Year’s Day gets a mix of sun and clouds and daily highs in the mid to upper 40s, the service’s Upton office said.

Breezy west winds are in store for most of Nassau and Suffolk counties, with gusts as high as 24 mph.

Those conditions, including the breezy west winds, linger for much of the weekend.

Saturday and Sunday are expected to be a bit colder, with daily highs in the low 40s.

Winds on each day blow up to about 15 mph, gusting from 20 to 30 mph.

Nighttime temperatures will be in the low 30s, with the windchill factor making it feel almost 10 degrees colder.

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The start of the workweek also brings colder temperatures.

Monday looks to be mostly sunny, with highs in the mid 30s. Tuesday also is forecast to be sunny, but with daily highs dropping to the low 30s.