The downpours are expected to ease this morning, but heavy rain may return on Thursday, the MetService said.
The Gisborne District Council late last night posted on its Facebook page that Ruatoria had received 170mm of rain since the previous day.
The latest weather hassles follow a deluge that caused problems throughout the North Island, but most significantly in the Coromandel.
Among those affected when more than 300mm of rain fell were about 30 carloads of holidaymakers, who spent the night in their cars after being stranded by rising floodwaters.
Whangarei
• Today: Few showers, chance heavy later. 19C.
• Tomorrow: Cloudy with a few showers. 17C.
Auckland
• Today: Few showers, chance heavy later. 18C.
• Tomorrow: Showers. 17C.
Hamilton
• Today: Odd shower. 19C.
• Tomorrow: Showers, possibly heavy. 19C.
Tauranga
• Today: Occasional rain. 18C.
• Tomorrow: Showers, some heavy. 17C.
Gisborne
• Today: Rain. 14C.
• Tomorrow: Periods of rain. 17C.
Wellington
• Today: High cloud, 15C.
• Tomorrow: Cloudy, few showers. 16C.
Christchurch
• Today: Drizzle clearing, 15C.
• Tomorrow: Often cloudy, 14C.
Dunedin
• Today: Drizzle clearing, 14C.
• Tomorrow: Cloudy with a few showers. 14C.