It will be another weekend of good sledding and snowblowing in southern Maine.

The National Weather Service forecasts a large swath of the region to receive at least 3 inches of snow Friday night into Saturday, while some areas may receive up to 8 inches.

Two low-pressure systems elsewhere in the country are the culprits, according to Justin Arnott, a meteorologist at the weather service’s office in Gray. One is expected to be over the Great Lakes region on Friday, he said, while another is developing just south of New England.

“Between those two systems, there’s going to be a band that comes through and brings us some more plowable snow across the region,” Arnott said.

The highest totals are expected in southern Oxford County, northwestern York County, and a slice of western Cumberland County. On Thursday, the weather service’s Gray office projected that area — stretching from Fryeburg to Sanford — would see 6 to 8 inches Friday night into Saturday. The weather service Thursday issued a winter storm warning for that area and central New Hampshire.

Eastern York County, most of Cumberland County, central Oxford County and all of Androscoggin County are projected to receive 4 to 6 inches of snow Friday into Saturday. Kennebec County, Waldo County, southern Franklin County and northern Oxford County could see 2 to 4 inches. All of those areas were placed under a winter weather advisory by the weather service on Thursday.

Snow totals are forecast to be less farther north and east. Somerset County and northern Franklin County could see about an inch, while the northern half of the state is expected to receive less than an inch of snow, if any.

Arnott said the snow should begin falling in Portland around 6 p.m. Friday, “a little earlier to the south, a little later to the north.”

“The conditions during the evening commute across southern New Hampshire and York County are going to deteriorate pretty quickly,” Arnott said.

The precipitation is expected to be heaviest late Friday night, according to the weather service, when snow may accumulate at a rate of more than 1 inch per hour.

“It looks like by late morning and through the day Saturday, travel conditions should improve pretty quickly,” Arnott said.

Forecasters are also looking ahead to another system that is expected to bring at least some snow to the state Sunday night into Monday. Arnott said that the Sunday storm appears to be much stronger than what’s arriving Friday, but it could be a near miss for Maine.

“Right now, the greatest chances are for that storm to stay far enough out to sea for us not to see a significant impact, with a little bit of light snow,” Arnott said Thursday. But he cautioned it was too early to be certain and encouraged Mainers to keep an eye on the forecast in the days to come.