Aside from a few showers on Friday, the next five days will be fine in Whanganui.
MetService meteorologist Andy Best said a cold front was moving up the country on Friday, and would cross Whanganui early in the afternoon.
"Showers will be more frequent last on Friday morning, but it will fine up by the evening.
"Westerlies will turn south-east as that front goes through.
"The maximum temperature will be 16C. Behind that front is a ridge of high pressure, so it'll be quite a cold night on Friday - down to about 2C early on Saturday morning.