A cold blast that is affecting Aussie is now moving into NZ overnight tonight and across Tuesday, bringing snow to low levels in the South Island and to just 300 or 400m into the North Island for a time.

In the South Island snow levels may get down to 100 or 200m overnight/Tuesday AM, although heavy snow is mainly above 400m and clears away quite fast going into Wednesday.

Later this week huge high pressure out of Australia will move in – bringing drier weather for most places, but also colder nights again. We have your New Zealand forecast out to Sunday.