A low in the Tasman Sea pushes rain or showers over New Zealand today from the west, and a very weak high flicks up some polar air for the eastern South Island. These combined scenarios may lead to heavy snow about the inner South Island today.

Northland, Auckland, Waikato & Bay Of Plenty
Sunny spells and a few showers, more so this afternoon with heavy falls / a risk of thunder mainly for south Auckland, Waikato and Bay Of Plenty then easing later on. Northwesterly winds.
Highs: 16-18

Western North Island (including Central North Island)
Cloudy with showers then afternoon rain possibly heavy, easing in the evening. Northwesterlies.
Highs: 10-15

Eastern North Island
Sunny areas and some high cloud, Wairarapa sees some rain. Northwesterly winds.
Highs: 14-18

Wellington
Some rain with northwest winds becoming gusty from afternoon.
High: 13

Marlborough & Nelson
Rain, clearing in the afternoon for Marlborough as light winds pick up from the northwest, some sun possible later in the day before dusk. Nelson sees rain ease to showers in the afternoon, staying fairly cloudy.
Highs: 11-13

Canterbury
Rain with heavy falls possible especially inland, snow to 700m for northern North Canterbury lowering down to 300 or maybe even 200m for South Canterbury. Snow could be heavy. East to southeast winds.
Highs: 2-8

West Coast
Rain with heavy falls possible, snow to 600m for North Westland, possibly 500 to 400m in the ranges of South Westland. East to northeasterly winds.
Highs: 10-12

Southland & Otago
Cloudy, may be a shower for Southland. Otago has patchy rain or drizzle, snow flurries to low levels (100 to 200m). Cold easterlies, winds fresh about the coast.
Highs: 2-7

By Weather Analyst Aaron Wilkinson – WeatherWatch.co.nz