However the sunny days will end on Sunday, as a cold front - currently moving up the South Island - mixes with the humid air over the North Island.
This will bring rain in Northland on Monday, starting with showers at midday, moving into heavier rain and possible thunderstorms in the afternoon, O’Connor said.
There could be bursts of heavy rain, although MetService has not issued any warnings or watches for Northland yet.
The rain continues into Tuesday and Wednesday for Northland, O’Connor said.
But while the sunny weather may be over, the warm temperatures are set to continue, as well as warm humid nights of 20C across Northland, she said.
Temperatures will drop slightly on Tuesday - with a forecast of 25C for Whangārei, 24C for Kaitāia and 23C for Dargaville - before temperatures go back up again.