Later this week, an Alberta Clipper will roll across the northern tier of the U.S., potentially bringing snow to New York City. Here's what you need to know, including a preview of December in NYC.

Even if snowflakes do develop, they won’t be widespread or heavy, per the National Weather Service's forecast.

New York City’s run of mild weather appears to be headed toward an abrupt end thanks to an Alberta Clipper bringing cold weather and possibly snow down from Canada. “Many areas across the northern tier will start the month of December with temperatures well below historical averages,

Lows for the weekend will drop down to the mid-20s in and around City, while certain areas of upstate could see up to 6 feet of snow.

According to the AccuWeather.com forecast, low temperatures will come in at 30-33 degrees Saturday through Thursday, then in the high 20s next Friday, Saturday and Sunday. High temperatures will register in the low 40s during the work week. The good news is that, despite the cold, it is expected to be mostly a dry pattern.