A cold front pushes northwards over New Zealand during today reaching the North Island in the afternoon, it will weaken as it moves northwards however. Strong northwesterlies ahead of the front then changing colder southwest in behind.

Northland, Auckland, Waikato & Bay Of Plenty
Sunny spells, a few showers move into the Waikato late morning then the Bay Of Plenty in the afternoon. Clearing in the evening as westerlies change southwest. Northland has light winds during the day and afternoon sea breezes, a few showers pass by North Cape for a time.
Highs: 23-24

Western North Island (including Central North Island)
Showers develop in the morning, chance of an isolated heavy fall then clearing late afternoon or evening as fresh northwesterly winds change southeast.
Highs: 18-22

Eastern North Island
Mostly sunny, late afternoon or evening northwesterly winds change fresh southerly bringing cloud and the chance of a few showers.
Highs: 24-28

Wellington
Chance of a morning shower, mostly cloudy. Strong northwesterly winds change southeast in the afternoon.
High: 21

Marlborough & Nelson
Brisk to strong northwesterly winds with some mid and high level cloud, chance of a shower for Nelson. Winds change fresh southeast in the afternoon about Marlborough, winds tending southwest in the afternoon for Nelson and easing with conditions becoming mainly sunny.
Highs: 23-25

Canterbury
Strong northwesterlies early on with gales in the high country, winds then change gusty southerly in the morning bringing cloudy areas and the chance of a shower. Looking to stay mainly dry. Winds gusting to gale at times Banks Peninsula southwards along the coast in the afternoon then easing in the evening. Chance of a light frost for inland areas by dawn on Saturday.
Highs: 17-20

West Coast
Early heavy rain with possible thunderstorms, easing to showers and clearing in the morning then becoming mostly sunny in the afternoon. Southwesterly winds.
Highs: 15-18

Southland & Otago
Showers, possibly heavy with a chance of hail in the morning (especially Southland) then easing and clearing in the afternoon for inland areas, near the coast in the evening. Strong cold southwesterly winds, gale about the coast easing later in the day. Frosts may develop overnight for inland areas.
Highs: 12-16

By Weather Analyst Aaron Wilkinson – WeatherWatch.co.nz