"Sunday those showers will be gradually clearing and those southerlies dying out," Clark said.
Daytime temperatures over the weekend are looking to be mild, with highs in the mid-teens for both days.
Every cloud has as silver lining, as the old saying goes, with the cloud cover acting as insulation overnight.
This means overnight temperatures will be staying relatively mild until the cloud clears on Sunday evening, with overnight temperatures expected to drop to 1 degree.
The last of the rain should have cleared by Monday, with the start of the week looking fine with a high of 15 degrees.
If you need a good indoor activity, the National Aquarium is having a half price weekend.
Family passes for two adults and up to two children will be $30.
WeatherWatch.co.nz said a large high-pressure system will bring a period of settled weather to other areas of the country.
This weather pattern will persist until Sunday, when a large cold front approaches Southland.
WeatherWatch said the clear skies from this high will lead to daytime warmth escaping at night, which means overnight temperatures will return to normal levels despite the warmer than average days.
"We may even see a few frosts around the South Island today. In Canterbury and Marlborough, minimum temperatures may actually even be a little lower than usual on Friday and Saturday," a Weatherwatch spokesperson said.