The eastern ranges in the Bay of Plenty would still get a few showers today.
"There will be more showers in the ranges and, if people are unlucky, there will be further swelling of the rivers, but naturally it's going down," he said.
Mr Adams urged drivers to take care around the area for swollen rivers and slips.
Auckland may see showers first thing this morning, but fine spells will increase in the afternoon.
Southerlies will move up the east coast of the South Island, bringing rain in Canterbury, Mr Adams said. There would also be rain in the Banks Peninsula and Southland before dawn.
Mr Adams said the weather was "looking interesting" for the weekend. "There's another system moving into the country late on Saturday."
Northern and western parts of the country would see rain start to spread, he said. "It's coming from the Tasman moving from west to east."