Lotto: Second-highest jackpot ever up for grabs

One of the biggest Powerball prizes in Lotto history is up for grabs on Saturday night.

Long queues are expected in stores ahead of $35 million prize draw.

"The excitement is building in Lotto stores all around the country as the jackpot continues to grow," Lotto spokesperson Marie Winfield said on Thursday, after no one hit the jackpot on Wednesday night.

"It's a life-changing amount and if a single player is lucky enough to win the Powerball jackpot on Saturday night, it will be the second-largest prize ever won in New Zealand."

Only the $44 million won by a Hibiscus Coast couple in 2016 is bigger.

No one has hit the Powerball jackpot since December 28 last year. That winner took three weeks to come forward to claim their riches.

"We're sorry - due to the high jackpot we have more visitors to our website than normal," a message on Lotto's website read earlier this week. "If you have trouble accessing the site, please try again later."

Ticket sales close at 7:30pm ahead of the draw at 8pm.