MetService meteorologist John Law said only the Western Bay of Plenty and Coromandel would still be experiencing heavy rain.
"There's still some heavy rain about for those parts, but it looks like it will ease off nicely [today]."
The rain band that dumped up to 190mm across the Raukumara Ranges and 205mm on the Kaimai Ranges yesterday was due to hit Auckland last night but would clear today, Mr Law said.
"[Today] will be a transition sort of day for most of the country. The forecast is for a fine day on Saturday for most of the country."
The storms left thousands of Tauranga, Coromandel and South Waikato homeowners without power. Powerco had restored power to all except 200 customers yesterday.
Vector communications manager Sandy Hodge said between 300 and 400 customers in the North Auckland region were still without power last night, down from 90,000 at the height of the storm.