A subtropical northeasterly airflow lies over New Zealand today, flowing between a large high to our east and a low to the west.

Northland, Auckland, Waikato & Bay Of Plenty
Cloudy areas, there may be some sun break through at times in the morning. The odd light shower or spit about some exposed eastern areas like eastern Northland, Great Barrier Island and Coromandel / western Bay Of Plenty. The odd spit or shower becoming a little more widespread overnight. Northeasterly winds.
Highs: 15-17

Western North Island (including Central North Island)
Sunny areas and some high cloud, Taranaki especially near the coast has more mid level cloud. East to northeasterly winds.
Highs: 13-16

Eastern North Island
Sunny areas and some high cloud, northeasterly winds.
Highs: 14-15

Wellington
High cloud with northerly winds.
High: 14

Marlborough & Nelson
Plenty of high cloud for Marlborough with north to northwesterly winds. Nelson sees cloudy skies, there may be the odd spit or drizzle patch, winds from the north or northeast.
Highs: 13-15

Canterbury
Plenty of high cloud, sun may break through at times. Northeasterly winds.
Highs: 13-15

West Coast
Cloudy, showers about South Westland turn to rain in the afternoon. Showers move into North Westland in the evening. Northeasterly winds. 
Highs: 13-15

Southland & Otago
Cloudy, the odd spit of rain at times. Coastal Otago stays mainly dry. Light winds.
Highs: 12-15

By Weather Analyst Aaron Wilkinson – WeatherWatch.co.nz