Toni was born in New Plymouth and grew up in Taranaki. She later attended Lincoln University on a sports scholarship.

Street initially joined Television New Zealand (TVNZ) in 2006 on a six-month internship. Her role later increased and she was part of TVNZ’s commentary team for the 2008 Summer Olympics in Beijing.

In 2013, she became the permanent co-host of the weekday Breakfast, alongside her former Saturday Breakfast co-host Rawdon Christie. This year, she and Mike Hosking joined Jesse Mulligan on the Seven Sharp panel.

She is married and has a daughter.