A strong cold southwesterly airflow lies over New Zealand today.

Northland, Auckland, Waikato & Bay Of Plenty
Mostly cloudy with occasional showers, long dry spells about Bay Of Plenty. West to southwesterly winds, blustery at times.
Highs: 13-15

Western North Island (including Central North Island)
Mostly cloudy with the odd shower. A few snow flurries to 400m about the Central Plateau in the morning then lifting during the day. West to southwesterly winds, strong about coastal areas.
Highs: 9-13

Eastern North Island
Mostly sunny with gusty westerlies from late morning.
Highs: 15-16

Wellington
Sunny spells, blustery northwesterly winds from late morning.
High: 14

Marlborough & Nelson
Mostly sunny about Marlborough with westerly winds. Nelson has a mostly sunny morning, cloud builds from afternoon then expect showers by evening.
Highs: 14-16

Canterbury
Mostly sunny, evening showers as westerlies tend fresh southwest.
Highs: 12-14

West Coast
Wet with rain or showers, snow to 400 or maybe even 300m in the morning then lifting during the day. There may be some hail at times till afternoon. Fresh cold west to southwesterly winds.
Highs: 9-11

Southland & Otago
Showers, some may be heavy with hail then easing from afternoon. Snow to 200m first thing in the morning then lifting during the day. Cold west to southwesterly winds.
Highs: 8-12

By Weather Analyst Aaron Wilkinson – WeatherWatch.co.nz