Light rain in the top of the North Island will start to breakup this afternoon.
However fine conditions are set to be short lived for Auckland, with more showers on the way tomorrow morning - expected to clear by Sunday afternoon.
"By Sunday evening, most of the North Island should be quite clear," said Mercer.
Another front moving up the country will bring cool south westerlies and more rain for most parts of the South Island and lower North Island by this evening.
The South Island will get a brief respite from the rain tomorrow morning before yet another front delivers more wet weather for Westland on Sunday.