Western North Island (also Central Plateau)
Clouds thickening but mainly dry. Patchy rain developing towards evening, possibly afternoon further north. Winds mainly from the north buiding.
Highs: 21 to 24
Low: 13 to 17

Eastern North Island
Clouds thickening with north to north west winds building.
High:  23 to 28
Low: 12 to 16 

Wellington
Patchy rain developing with northerlies. A strong, colder, southerly change arrives during the day bringing even heavier rain.
High: 18
Low: 12

Nelson & Marlborough
Patchy developing and setting in amongst the ranges with northerlies. A strong, colder, southerly change arrives during the day bringing even heavier rain (but isolated heavy falls).
High: 20 to 23
Low: 13 to 15

West Coast
Rain with heavy falls north of Hokitika. Rain easing from the south as the day goes on. NE winds turn SE.
Highs: 14
Low: 9

Canterbury
Rain setting in, with a few heavy falls. A colder, stronger, southerly change, Rain eases south of Christchurch during the day.
High: 12 to 15
Low: 9 or 10

Southland and Otago
Fairly cloudy and cold with winds from the southerly quarter.
Highs:  11 to 13
Lows: 5 to 8

– By head weather forecaster Philip Duncan, WeatherWatch.co.nz