People in Marlborough have been asked to keep an eye on what's happening with the weather periods of heavy rain drenching the region.
Metservice earlier issued a severe warning for eastern Marlborough, eastern Wairarapa including the Tararua District, and Hawkes Bay today and tomorrow, but the warning has since been downgraded to a weather watch.
Meterorologist Stephen Glassey told 1NEWS the wet weather was moving north with Wairapa and Hawkes Bay also experiencing the brunt of the heavy rain. Areas of Wellington were also drenched overnight, with 95mm of rainfall between 6pm and 8am.
Auckland was in for a mostly fine day today, but would experience "a few showers in the evening after it gets dark," Mr Glassey said.
Meanwhile, winter was setting in for other parts of the country with temperatures dropping into the negatives, he said.
Alexandra saw the lowest temperature reach -4 degrees Celsius overnight, with areas including Lumsden, Dunedin, Queenstown and Wanaka also in the negatives.
People would have woken up to "significant frosts" in much of the lower South Island, Mr Glassey said.