Spring has arrived and weather around the country will be inconsistent as a result, MetService says.
A low over New Zealand has been tracking eastwards over the upper North Island since yesterday afternoon.
Strong, cool southwesterlies will follow today but ease by Saturday.
Meanwhile, a cold front sweeps up the South Island on Sunday, while a warm front ahead of the next low from the west moves over the North Island.
MetService meteorologist Rob Kerr said rain was expected.
"There's a few wet days coming up for most, with rain giving way to showery southwesterlies during today and Friday.
"Respite, although brief, is on the way, as a ridge brings settled conditions across the country on Saturday ahead of more rain affecting many regions on Sunday."
It is possible showers could affect the All Blacks-Tonga game in Hamilton tomorrow afternoon.