Either a dusting of snow or snow showers are possible Friday and Saturday nights for parts of New Jersey, forecasters say.

While that part of the forecast remains murky, what's certain is that cold air is headed our way.

Temperatures are in the 40s Wednesday morning and won't get any warmer though the weekend, the National Weather Service says. Lows the next couple of nights will range from the upper 20s to low 30s.

Daytime conditions will be dry and sunny through Friday. Some light snow could fall that evening.

As of Wednesday morning, the weather service says there's a 30 percent chance of snow around Trenton, Morristown and Newark, with a 50 percent chance in the Atlantic City area.

If snow falls in South Jersey coastal areas, it won't be much at all -- between a tenth and quarter-inch, according to the weather service. In North Jersey, precipitation could fall as a mix of rain and snow.

Light snow could linger into Saturday morning on what should be a mostly cloudy day. The National Weather Service said bands of flurries may hit the area on Sunday as well.

Good Wednesday morning NWS Mount Holly friends and visitors to NJ DE e PA e MD. A colder pattern will develop over our... Posted by US National Weather Service Philadelphia/Mount Holly on Wednesday, December 6, 2017

There's another opportunity for snow showers Saturday night as well -- 40 percent around Newark and along the Shore and 30 percent in the Trenton area. Once again, little to no accumulation is expected if snow materializes.

Snow forecast update (Wednesday afternoon)

Forecasters say the probability is increasing for some light snow showers over most of New Jersey on Sunday. In a hazardous weather outlook issued at 2:50 p.m. Wednesday, the National Weather Service in Mount Holly said this:

Snow showers or snow squalls may coat some roads with up to an inch of snow Sunday morning in parts of eastern Pennsylvania and New Jersey, with the higher terrain more susceptible for an accumulation. The chance for a slight accumulation of snow in the cities along the Interstate 95 corridor is less than in colder sections of northeast Pennsylvania and far northwest New Jersey.

As for the earlier snow possibility, the weather service says this for southern and coastal sections of New Jersey:

A coating to possibly an inch or two of snow is possible Friday night or early Saturday. There are still many uncertainties, including amounts of precipitation, whether its a mix of rain and snow or all snow, and how much can accumulate with temperatures in the low to mid 30s. For now, it looks like a minor event but a period of snow should occur over southeastern Delaware and possibly through southeastern New Jersey Friday night or early Saturday.

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NJ Advance Media staff writer Len Melisurgo contributed to this report.