A series of fronts starts marching over the South Island today, this culminates in a southwest airflow spreading northwards later today and overnight meanwhile a ridge is losing strength over the North Island.

Northland, Auckland, Waikato & Bay Of Plenty
Cloudy areas with occasional showers or areas of rain, northeasterlies. In the evening rain starts to affect eastern coastal areas with heavy falls, later in the evening heavy rain gets into East Cape also.
Highs: 21-24

Western North Island (including Central North Island)
A mix of sun and cloud, skies about Taranaki and Kapiti are a little cloudier with the chance of a shower especially from evening. Rain spreads into most areas later in the evening. Northerly winds.
Highs: 19-25

Eastern North Island
High cloud and some sun at times, scattered rain overnight spreading from the west, possibly heavy north of Gisborne. North to northeasterly winds.
Highs: 23-24

Wellington
Cloudy, scattered rain starts to spread in from around midday. Brisk to strong northerly winds.
Highs: 20-22

Marlborough & Nelson
Cloudy with rain, heavy falls for Nelson. Rain clears overnight for Marlborough, a few showers may remain for Nelson. Gusty north to northwesterly winds.
Highs: 21-22

Canterbury
Any early spots of rain clear then mostly sunny, further spots of rain may spread into South Canterbury from the west in the afternoon. Winds from the northwest and warm. Overnight a fresh southwest change moves through with showers.
Highs: 23-26

West Coast
Rain with heavy falls, thunderstorms at times especially morning then again later in the day. Breezy northerlies.
Highs: 18-21

Southland & Otago
Morning rain (possibly heavy for Southland) then easing around midday, sun may break through in the afternoon for Otago. Rain picks up again in the evening. Light winds freshen from the southwest later.
Highs: 16-22