The week will begin with lots of sunshine and seasonable temperatures as a ridge of high pressure builds into the Maritimes, says CBC meteorologist Peter Coade.

"This centre is drifting slowly to the east and will actually be centred right over the Maritimes by mid­day tomorrow."

Coade says as the system drifts south of Newfoundland overnight on Tuesday, inclement weather will move in.

"The first of two disturbances to affect the Maritimes this week will push snow across southern New Brunswick, Prince Edward Island and northern Nova Scotia and Cape Breton on Wednesday, starting in the western communities … around mid­morning Wednesday," Coade said.

That disturbance will move out Wednesday night but it will be followed by a more intense system that will bring snow beginning mid-afternoon on Thursday.

"Unlike the one the day before, the snow will change to rain in much of New Brunswick and Prince Edward Island likely going through a period of freezing rain," Coade said.

Temperatures are expected to be on the mild side of normal, then returning to normal for the weekend.

New Brunswick forecast

Northern New Brunswick

Monday: It will be mainly sunny today with northwest winds gusting to 20 km/h today, gusting to 40 km/h along the coast with a high near –8 C. With the windchill it will feel near –16 C.

Monday night: It will be mainly clear with winds becoming light and a low of –22 C.

Tuesday: Northern communities can expect sunny skies with a high of –6 C.

Fredericton and area

Monday: It will be mainly sunny with winds from the northwest at 20 km/h and a high of –6 C, feeling near –10 with the windchill.

Monday night: Skies will be mainly clear with winds becoming light and a low of –18 C.

Tuesday: The Fredericton area can expect sunny skies and a high of –4 C.

Southern New Brunswick

Monday: It will be mainly sunny today with winds from the northwest at 20 km/h and a high of –4 C but feeling near –11 with the windchill.

Monday night: Mainly clear skies are expected with light winds and a low of –16 C.

Tuesday: It will be mainly sunny with a high of –4 C.