A frontal system and associated low moves over the North Island on Friday bringing an unsettled day, heavy rain is possible too especially in the southwest. The South Island starts to see clearing conditions as a ridge moves in.
There may be a few morning areas of sun for the northeastern North Island on Friday then rain pushes in by afternoon. This rain may be heavy as marked below for the southwestern North Island then easing later in the day.
Morning rain, possibly heavy for Nelson / Marlborough then easing, conditions further south gradually clear.
By Weather Analyst Aaron Wilkinson – WeatherWatch.co.nz