A northwesterly airflow lies over New Zealand today and on Friday.

Mostly sunny for the upper / eastern North Island today, just watch for the chance of an isolated shower about Northland this afternoon. Some cloud and a few showers in the southwest. Rain or showers for the West Coast of the South Island, possibly heavy at times for South Westland. Mainly dry with some sun / high cloud in the east. Showers at times spread into Southland.

Mostly sunny for the upper / eastern North Island on Friday, any morning cloud for Auckland, Waikato and Bay Of Plenty breaks away. Sunny spells in the southwest (Taranaki through to Kapiti), chance of a light shower at times for Taranaki and Kapiti. Rain for the West Coast of the South Island with heavy falls, thunderstorms at times about South Westland. Showers at times from late morning about Southland, the odd shower or spit of rain may spread into Otago in the evening. Sunny areas and some high cloud from Canterbury up through to Nelson in the east.

By Weather Analyst Aaron Wilkinson – WeatherWatch.co.nz