In the Auckland and Waikato region, it's the driest it has been in the past five years with only 19mm of rain recorded so far.
As we head into the weekend, a high pressure moves from the western side of New Zealand to the east which means Saturday is expected to be another warm day.
Duncan said showers will be returning to the West Coast of the South Island with winds beginning to pick up.
By Sunday, rain continues for the West Coast and spreads to the lower North Island with some breezy weather.
Next week the high temperatures are forecast to clear away with heavy rain and wind warnings likely.
Duncan said on Monday and Tuesday rain was only expected for South Island and mainly on the West Coast but by the end of the week wet weather was expected to cover the whole country.
A much colder surge of air was also expected later in the week as winter officially kicked off.