A broad low pressure system affects the South Island today, this low flings a front over the North Island pushing in from the west. Western parts of the North Island get the odd shower in a westerly airflow on Tuesday, drier out east. Cool southerlies for the South Island bring rain or showers in the east, clearing conditions out west.
A front brings developing rain or showers to western parts of the North Island today, mainly dry in the east with some high cloud. Showers for the West Coast of the South Island with rain about Fiordland from afternoon, mainly dry in the east with some high cloud.
Sunny spells and the odd shower for western parts of the North Island on Tuesday, mainly dry further east although there may be a few clearing morning showers for eastern Bay Of Plenty. Any morning showers clear the West Coast of the South Island then becoming mostly sunny, in the east rain or showers about Southland / Otago push northwards into Canterbury during the morning then Marlborough in the afternoon with south to southwest winds.
By Weather Analyst Aaron Wilkinson – WeatherWatch.co.nz