Forecasters say it is still uncertain whether a weather system bringing precipitation on Friday will dump rain or snow on Massachusetts.

The National Weather Service issued a special weather statement at 5:09 a.m. on Wednesday in effect until 9 a.m. for Middlesex, Essex, Norfolk, Suffolk, Bristol and Plymouth counties.

The latest Massachusetts snow storm was nothing to write home about, but it did fall in time to make the Wednesday morning commute a bit slower in much of the state. Snow delays were declared for some Massachusetts schools as a result.

By Thursday, Massachusetts residents can expect to feel temperatures in the mid-to-upper 20s in most of the state, with temperatures in the 30s on the coast, and on Cape Cod and the Islands, according to the National Weather Service.

Massachusetts is expected to see several inches of snowfall Wednesday, according to the latest forecast from the National Weather Service's Boston office. A NWS meteorologist said Monday that a weather system known as an Alberta Clipper is expected to pass over the region from Canada Wednesday,

The National Weather Service is forecasting 2 to 3 inches of snow across the region. The best chance for the higher snowfall amounts may be in western and northern Massachusetts. Untreated roads may be snow covered and slippery for the Wednesday morning commute.

Some of Massachusetts saw several inches of snow overnight, contributing to a slippery morning, while others saw very little accumulation.

Meteorologists are predicting “plowable snowfall” across Massachusetts from Sunday night into Monday morning, as a nor’easter is expected to dump 3 to 6 inches of snow.

The National Weather Service issued a cold weather advisory for parts of western Massachusetts, which is in effect from midnight to 10 a.m. Wednesday. The following impacted areas could get wind chills as low as negative 15 degrees, with the exception of Northern Berkshire County, which could see wind chills as low as negative 25 degrees:

Snow is expected to begin around midnight tonight and continue into Wednesday morning, according to the NWS. "The highest snow totals will be in northern MA along the Route 2 corridor, where 1-3 inches is likely, with localized 4-5 possible in high terrain," NWS meteorologists wrote in the latest area forecast Tuesday.

Massachusetts could see several inches of snow this weekend from a weather system passing over the region on Sunday night, according to the latest forecast from the National Weather Service's Boston office.