"This high is going to bring welcome relief to much of the North Island this week, meaning folks in the upper North island who have taken the brunt of the recent bad weather can now focus on the clean-up without the threat of further inclement weather."
Gullery said the fine weather would also usher a return to autumnal temperatures, with cooler nights and warm days.
By late Friday a front would move onto the far south of the South Island and make its way to the top of the country during Saturday.
At this stage severe weather was not expected from the front.
Today's forecast
Auckland: Showers clearing by evening. 21C
Hamilton: Showers clearing by evening. 21C
Wellington:Showers easing by evening. Strong southerlies 15C
Christchurch:Rain esing to shows. Southwesterlies 15C
Dunedin: Mostly cloudy, a few showers. Southerlies 15C