Long Islanders can expect a half-inch of snow on Sunday as a low-pressure system tracks across the country, the National Weather Service said.

Sunday will start off dry but precipitation is expected later in the day, with temperatures in the mid-30s, meteorologists at the weather service’s Upton bureau said.

But beginning around 10 p.m., with temperatures rising into the upper 30s, the snow will become rain.

“It’s going to melt and get washed away,” meteorologist Adrienne Leptich said.

Temperatures will hit the 40s overnight.

Bruce Avery, a meteorologist with News 12 Long Island, warned motorists of hazardous roadway conditions starting Sunday evening into Monday morning.

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“With all the leaves down, even if it’s just rain, it’s slippery,” Avery said. “It could get sloppy. There might be some wet snow mixed in with the rain before it all turns over to rain, so it will be a mess for the Monday morning commute.”

Leptich said the first half of the morning commute might be a bit slippery but it shouldn’t be too treacherous.

With midweek relatively quiet, Avery said to watch out for another blast of arctic air on Thursday and Friday that will likely linger.