Waka Kotahi NZTA said contractors were working hard to keep state highway network operational in Horowhenua and Wellington.
The agency is asking drivers in Wellington to be aware of road works and traffic control measures in place at short notice as work is being done to undertake repairs, clear slips, and address localised flooding.
Tongariro and Mt Taranaki are now in the clear.
There were 1200 lightning strikes recorded by MetService between 3am-6am, mostly offshore, 84 strikes were focused over land in Taranaki.
Inglewood, in Taranaki, experienced 32.5mm rain in one hour.
Meteorologist John Law said it was not a huge amount of rainfall but not a dry day for New Zealanders either.
"Looking at the satellite images, we can see clearly clouds still pushing in towards southern parts of the country bringing with it more rainfall in parts of Dunedin and Otago because we still have severe weather warning in place for those places, that rain should ease out as we head into the day."
Marlborough, Nelson, Buller, Westland and the North Island except Gisborne and Hawke's Bay will experience occasional showers and possible thunderstorms.
Gisborne and Hawke's Bay are mainly fine with showers developing for a time this morning.
People in Canterbury, Otago, Southland, Fiordland and the Chatham Islands can expect a cloudy sky with scattered light rain or drizzle.
Mt Hutt ski field weather is reporting there has been 20cm of snowfall in the last 72hours, with more than 2m in total this season.
Road snowfall warning is in place for Milford Road (State Highway 94) from mid-day Friday and Crown Range Road tonight.
MetService said rain might briefly turn to snow above about 900 metres tonight and overnight on Crown Range Road where 1cm or less of snow may accumulate.
And on Friday afternoon, 1-2cm of snow was expected to accumulate near the Homer Tunnel on SH 94.
Rain is forecast for the rest of the weekend.
