Thursday night's snowfall was just the start of the winter weather, as the National Weather Service forecasts a snowstorm that will hit Watertown early Saturday, dumping 2 to 4 inches of snow through the day.

The snow should start falling after midnight tonight and be finished by 4 p.m. Saturday, the NWS forecast says.

Snow will accumulate quickly on the cold pavement, which could make travel treacherous, especially on untreated roadways, according to the Winter Weather Advisory sent out by the National Weather Sevice.

The high is expected to be 25 degrees, with winds of 5 to 8 mph.