A front pushes northwards over the South Island on Tuesday reaching the lower North Island overnight, winds from the north or northwest ahead of the front, changing southwest in behind.
Sunny spells for the upper / western North Island on Tuesday, chance of a light shower or two for some exposed eastern parts of Northland and Auckland. Rain moves onto the southwestern corner of the North Island overnight.
Heavy rains pushes northwards along the West Coast of the South Island, easing evening with a southwest change. Mainly dry in the east with some high cloud, spots of rain spread into Marlborough however in the evening. Also Southland and Otago sees some brief rain then a few showers with a southwest change.
By Weather Analyst Aaron Wilkinson – WeatherWatch.co.nz