Aucklanders are set to bask in gorgeous sunshine today, but will likely face showers tomorrow for the return of America's Cup racing.
Elsewhere, Blenheim is tipped to scorch under a high of 29C today, while Whangārei in the north and Hamilton are set for 27C.
Forecaster MetService said sparkling summer weather would shine on most of the country today before some areas, such as Auckland, were hit by unsettled conditions, rain and cooler weather next week.
'While the last seven days have been relatively settled due to a slow-moving region of high pressure, the next seven days will see low pressure come back into the picture," MetService said.
The nation's biggest city is expected to reach 25C today as morning cloud gives way to sunshine, before Sunday reaches a high of 26C, with rain developing in the afternoon.