For all the North Island, excluding Gisborne and Hawkes Bay: Rain spreading east to most places overnight or tomorrow morning, then clearing in the afternoon. However, showers returning at night from Taranaki to Northland, some heavy with possible thunderstorms.
Gisborne and Hawkes Bay: Mostly cloudy, with a few showers tomorrow.
Nelson, Buller, Westland and Fiordland: Rain, with heavy falls overnight. Rain easing to showers around midday tomorrow. Showers becoming heavy and thundery in Nelson at night.
Marlborough, Canterbury, Otago and Southland: Scattered rain clearing late tomorrow morning. However, showers returning for a time in the afternoon and evening, some heavy with isolated thunderstorms and hail about Southland and Otago.
Chatham Islands: Cloudy, with rain later tomorrow.
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.