There was already a road snow warning in place, said forecaster Rob Kerr.
"Between 4 and 8pm today 1 to 2cm of snow is expected to fall.
"There will be a dusting on most of the Desert Road."
An active feature coming onto the lower North Island from the south west was responsible for bringing the bad weather, with heavy rain and thunderstorms predicted around Mt Taranaki and Palmerston North.
In higher areas, the temperature drop meant snow - good news for eager skiers.
Down south, MetService predicted strong winds, especially on the Southland and Otago coast.
A severe weather watch was already in place in those areas.
"MetService meteorologists advising that wind may rise to severe gale force during Thursday night through into Saturday," MetService said.