Much of the western part of Massachusetts could get as much as 4 inches of snow tonight, with some areas possibly seeing up to 6 inches, National Weather Service forecasters said this afternoon.
Rain will change to sleet and snow beginning between 7 p.m. and 10 p.m. across northwest Massachusetts and the changeover will spread eastward. Snow may be heavy briefly in the overnight hours before tapering before daybreak, the forecasters said in a winter weather advisory.
The forecasters said the amounts of snow could increase or decrease depending on when the changeover occurred.
A weather service snowfall forecast map showed only 1 to 2 inches falling in most of Eastern Massachusetts with areas near the coast and Southeastern Massachusetts getting less than 1 inch.
Snow showers will continue early Saturday, but should taper off before noon. After the snow ends and temperatures warm, rain will fall into the early afternoon before skies begin to clear. Temperatures should settle in the upper 30s. Conditions will remain clear overnight and temperatures will fall into the mid-20s, according to the weather service.
On Sunday, when fans gather for the Patriots game in Foxborough, skies will be mostly sunny, with a high near 34. A northwest wind will gust around 10 miles per hour. Skies will become cloudy Sunday night and a more significant system will bring snow showers, which will begin south of the Massachusetts Turnpike and track north, Foley said. Temperatures will drop into the upper 20s overnight.
“Snow will begin to fall after midnight and then switch to a wintry mix for Monday morning, right at the heart of the commute,” said Charlie Foley, weather service meteorologist. “There could be 1 to 2 inches in Boston, but it’s not going to hang around because of the rain. Further west, we are looking at 2 to 4 inches.”