This was the second-warmest spring temperature in the town on record since 1949, while 24 of the last 31 days in the town have been warmer than 20C.
Alexandra and Wanaka got to around 28C and will be the same again tomorrow and Friday. A southerly due to hit over the weekend will drop these temperatures to about 24-25C.
Christchurch and Wellington are looking at temperatures in the low 20s, with this dropping down to 18-19C over the weekend.
As the southerly moves up the country, the East Coast and the central plateau area of the North Island could also get a few showers.
Auckland isn't expected to be affected and will sit at a steady 22-23C until Sunday.
"What you guys are really going to notice is the humidity so get the fans out or the air con ready," Murray said.
"There won't be any extremes or records broken but it will be hot and humid. That humidity should start on Friday and carry through until Monday.
"Next week is looking like a dry, warm week as well but the first week of December may end the summer spell and bring with it another bout of wet weather."
According to the Niwa seasonal outlook temperatures are expected to sit above average across all of New Zealand for the next two months.