A west to northwesterly airflow lies over New Zealand today, a cold front and associated southwest change moves into Southland this afternoon then Otago this evening.

Northland, Auckland, Waikato & Bay Of Plenty
Cloud increases about Waikato in the morning, then Auckland and western Bay Of Plenty from afternoon. Finally some cloud moves into Northland in the evening, mostly sunny skies before cloud moves in. West to southwesterly winds.
Highs: 14-17

Western North Island (including Central North Island)
Mostly cloudy, some sun may break through at times. The odd shower possible about Taranaki by evening. Breezy northwesterly winds.
Highs: 12-14

Eastern North Island
Sunny with northwesterly winds, gusty from afternoon for Wairarapa. Winds perhaps tending northeast in the afternoon near the coast for Hawkes Bay.
Highs: 16-19

Wellington
Mostly cloudy with gusty northerlies.
High: 13-14

Marlborough & Nelson
Sunny, some high cloud later in the day. West to northwesterly winds.
Highs: 17-20

Canterbury
Mostly sunny with high cloud from afternoon, west to northwesterly winds. Evening southerlies move into South Canterbury bringing rain, pushing into North Canterbury by dawn on Thursday.
Highs: 17-19

West Coast
Cloudy skies, showers about Fiordland turning to rain in the afternoon with heavy falls. Rain pushing northwards overnight. Northwesterly winds.
Highs: 12-13

Southland & Otago
Thickening high cloud, rain moves into Southland around midday then Otago mid afternoon as northwest winds change southwest. Rain eases to the odd shower by evening for Southland, overnight in Otago.
Highs: 14-17

By Weather Analyst Aaron Wilkinson – WeatherWatch.co.nz