Cold weather is expected to blast much of the country this week, with snow expected in the eastern parts of the South Island and the central North Island.
A blast of icy air is set to bring some of the coldest days of winter on Wednesday.
MetService has issued a severe weather watch for Westland and Hokitika, with heavy rain expected to "reach a critical level".
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The rest of the country is also in for cold weather midweek. MetService says it will have more details about the cold blast by midday Monday.
Monday's weather is mostly cloudy with the odd shower in parts of the country.
Northland is forecast to have heavy rain and possible thunderstorms.
Auckland is likely to be mostly cloudy, with northeasterlies and the odd shower north of Whangaparaoa, spreading elsewhere from the afternoon. Heavy rain is predicted in the evening.
Wellington is in store for a mainly fine day with northeasterlies and evening cloud.
Nelson is cloudy with morning showers and northerly breezes, with rain expected tonight.
Christchurch is mostly fine today with snow and heavy rain forecast for Wednesday.
Queenstown is set to be cloudy with rain at times and light wind.
Meanwhile it's much of the same for the Chatham Islands, with cloud and the odd shower.
The maximum temperature for the South Island is 15C. For the North Island, 17C is the top temperature.