On Friday, the risk of showers disappears, with light winds or sea breezes in the afternoon, and the same again on Saturday.
Up until then, though, most Kiwis can expect mostly fine weather, however inland areas are at risk of showers and even thunderstorms.
"The other trend for inland areas of both islands is isolated showers in the afternoon ... today and tomorrow we do see thunderstorms for North Island's inland areas, nothing too hectic, but just a chance of possibly short, heavy rain."
Those inland areas in the North Island were from Taumarunui and south, including the Tararua Ranges. Tomorrow the risk spreads further north to include Waitomo and inland Waikato.
Temperatures are also a feature over the next few days, especially Friday, with most areas above average.
That included Alexandra, which would likely reach 31C, while Invercargill - which normally averages 19 degrees in January - should get up to 25C by Saturday