“I think most of those will probably be up about the higher parts of the Whanganui region, up through the hill country.”
Law said this would help boost temperatures with highs of around 26C, and a low of 15C.
“Pretty warm looking story there and staying warm through the night-time as well.”
The rest of the week remains close to the yearly average of 21C by day and 13C overnight.
“As we head through and towards the weekend, generally things are looking dry and settled,” Law said.
“Plenty of dry and bright” weather is expected for the weekend with some southwesterly winds making the coastlines cooler.
Clouds may develop early mornings and late evenings over the weekend.
Southwesterly winds early on Saturday will likely be the most significant winds of the week.