A northwesterly airflow lies over most of the country today with a large anticyclone passing over the upper North Island. A cold front moves onto the lower South Island this evening / overnight.

Northland, Auckland, Waikato & Bay Of Plenty
Cloudy areas, some sun breaks through at times. Chance of a shower, mainly out west. Dry otherwise especially about Bay Of Plenty. Southwesterlies tend westerly by evening.
Highs: 15-17

Western North Island (including Central North Island)
Mostly cloudy, chance of a shower mainly about Taranaki and Kapiti, west to northwesterly winds.
Highs: 12-16

Eastern North Island
Sunny with northwesterly winds. 
Highs: 16-18

Wellington
Mostly sunny, any morning cloud clears. Breezy northwesterly winds.
High: 15

Marlborough & Nelson
Sunny, some high cloud later in the day. West to northwesterly winds.
Highs: 15-17

Canterbury
Mostly sunny with some developing high cloud, evening rain moves into the high country. Northwesterly winds.
Highs: 14-16

West Coast
Cloudy with showers, some rain from afternoon. Northwesterly winds.
Highs: 12-14

Southland & Otago
Sunny areas and increasing high cloud, evening rain moves into Southland as northwesterlies change southwest. Rain pushes into Otago around midnight, rain eases overnight.
Highs: 14-15

By Weather Analyst Aaron Wilkinson – WeatherWatch.co.nz