A low crosses over the North Island today bringing unsettled weather, cold south to southwesterly winds for the South Island.

Northland, Auckland, Waikato & Bay Of Plenty
Sunny spells, may be a shower. Rain develops by midday for Northland spreading to Auckland and the Waikato late afternoon / evening with a chance of heavy falls as northeasterly winds change southwest. Rain not reaching the Bay Of Plenty till late evening or overnight. Southwesterly winds become strong especially in the west.
Highs: 17-18

Western North Island (including Central North Island)
Patchy rain or showers, may be an isolated heavy fall. South to southeasterly winds tending southwest later in the evening.
Highs: 15-18

Eastern North Island
Showers, east to northeasterly winds change southwest in the evening.
Highs: 15-17

Wellington
Patchy rain or showers, southerly winds gradually freshen.
High: 13

Marlborough & Nelson
Patchy rain or showers, east to southeasterly winds for Marlborough. Light winds tend northerly in the afternoon for Nelson.
Highs: 14-16

Canterbury
Mostly cloudy, risk of a shower. Showers more likely from mid afternoon about inland areas closers to the main divide then easing overnight. Southwesterly winds.
Highs: 10-12

West Coast
Sunny spells, may be a shower at times for Buller. From mid afternoon showers are more likely north of about Greymouth for inland areas (about the main divide) then easing overnight. South to southwesterly winds.
Highs: 13-15

Southland & Otago
Cloudy spells and occasional sun, may be a shower or two at times (mainly for Southland). Showers more likely overnight. South to southwesterly winds.
Highs: 11-14

By Weather Analyst Aaron Wilkinson – WeatherWatch.co.nz