A few showers may linger around the North Island’s east coast from Wairarapa to Gisborne but should clear in other eastern areas as a ridge of high pressure moves in for the weekend bringing more clear skies. 

WeatherWatch.co.nz expects widespread frosts to form again tonight in the South Island and sheltered parts of the North Island (probably western and inland parts as north as Waikato).  By tomorrow night frosts may become severe again as temperatures plummet to -7 and lower.

Central Otago is the most likely region to see such extreme lows with -10 a possibility for some sheltered pockets away from our thermometres.   The high is actually going to be centred south of New zealand so while it will spread out across the South Island it won’t neccesarily cover all of the North Island – particularly northern and eastern fringes.

That means the cold southerly or south easterly wind will continue over places like Wairarapa, Hawkes Bay and Gisborne keeping daytime highs down but overnight lows up. 

Those sou’easters should also keep the frosts at bay in Northland with Auckland being borderline.

Either way – it’s going to be a cold weekend no matter where you are.