The wet and wild front that lashed the country earlier today may have subsided but heavy rain has left lingering problems.
A Lower Hutt road has been closed due to rising river levels, according to the Wellington Regional Emergency Management Office.
Block Rd in the city centre has been closed, and people parked in riverbank carparks have been warned to move their vehicles.
The Waihenga Bridge, on State Highway 53 leading into Martinborough may also close later tonight, a spokesman said.
"The sun may have come out but there is still plenty of water about trying to make its way to the sea."
The forecast is for sunshine tomorrow as many prepare to begin the working year.
However, the expected fine spell - with highs tomorrow in the mid 20s around the North Island and most of the South Island - was part of a topsy-turvy pattern with a wet front hitting south Westland tomorrow and pushing on to the rest of the country by Tuesday.
The wild weather is set to give way to another summery spell by the weekend.
''There's a high building so it could be a nice weekend but the weather is still going to be very unsettled. We're still working through this northwesterly regime with a lot of fronts sweeping up the country - it's going to be a bit up and down,'' MetService forecaster Liz Walsh said.