For all the North Island: Rain gradually spreading east, then clearing most places by evening, except Gisborne and Bay of Plenty. However, showers developing in the west tonight, some heavy and possibly thundery.
Nelson, Buller, Westland and Fiordland: Rain, with heavy falls, easing to showers by early afternoon and clearing in Fiordland. However, showers becoming frequent north of the glaciers tonight, some possibly heavy and thundery.
Marlborough, Canterbury, Otago and Southland: Showers, easing north Canterbury northwards this afternoon, but becoming frequent elsewhere this afternoon, some heavy and possibly thundery with hail.
Chatham Islands: Cloudy.
Wednesday: North Island, rain or showers in most places, some heavy falls about the ranges, clearing later. South Island, showers in most places, a few heavy in the afternoon.
Thursday: North Island, fine spells, but a few showers in the south and west. South Island, rain developing in the west, and a few spots of rain elsewhere.
Friday: North Island, showers spreading to most places, but only a few in the east. South Island, heavy rain in the west easing. Late rain in the south and a few showers elsewhere.
Chatham Islands: Showers on Wednesday with northerly winds. On Thursday, the odd shower, but fine breaks increasing. Winds turning westerly. On Friday, cloudy periods and northwesterlies.