Rew plays at Somerset alongside his older brother James and has been part of the club’s pathway since the under-11 stage.
His previous deal with the club took him to the end of the 2028 campaign.
He burst onto the scene in June 2025 when he hit the fastest-ever century for England Under-19s and earlier this year captained the side to the Under-19 World Cup final, quickly becoming one of England’s brightest young talents.
Hurry said that Rew – who turns 19 next month – has a “strong work ethic”.
“What has stood out most is how comfortable and confident he has looked from the outset,” he said.
“He has a strong work ethic, a real willingness to learn and improve, and the resilience and determination needed to keep developing his game.
“Those qualities will give him every opportunity to fulfil his potential and make a significant impact for Somerset in the years ahead.”
Rew added that it was an “honour” to call Somerset home.
“It’s where I’ve grown up, and every time I walk out in front of those fans it’s very special,” he said.
“The Somerset badge means a lot to me and to everyone inside that dressing room, so hopefully we can continue to challenge for trophies and bring a few more home.”