Hurst is one of the Hammers' all-time greats with 180 goals in 411 games for the club.
He was part of the famous West Ham trio along with Martin Peters and Bobby Moore which won the 1966 World Cup for England, Hurst getting a hat-trick in the final.
The East Londoners laid on a blockbuster show afterwards as the curtain fell on their home of 112 years.
Fireworks, video tributes, interviews and the return of legendary players from a bygone era made it a night to remember for all involved.
'I'm very sorry I couldn't be at Upton Park'
But there were one or two notable absentees including Sir Geoff, who has taken to social media to explain his absence to bemused Hammers supporters.
"I'm very sorry I couldn't be at Upton Park for the closing ceremony," Sir Geoff posted on the A1 Sporting Speakers Facebook page.
"I had a prior engagement from a year ago that I was contracted to attend. I was at the end of season dinner last week and said my fond farewells to my spiritual footballing home.
"I watched the game and the closing ceremony on TV this morning and it was a fitting end to 112 years for the most atmospheric ground and best and most loyal supporters in the land.
"A great result last night that will live long in our memories. Let's look forward to a new era at the Olympic Stadium with optimism and faith in West Ham United's future. We will still be forever blowing bubbles hopefully for the next 112 years."
Hurst posted a link to the statement on his Twitter account and followed that up by playing down suggestions there was something more to his no-show.
"Nothing sinister last night I was elsewhere and had to fulfill my obligation, was there a few days before to say goodbye," he added on Twitter.
Geoff Hurst (@TheGeoffHurst) May 11, 2016
Nothing sinister last night I was elsewhere & had to fulfil my obligation was there a few days before 2 say goodbye https://t.co/tzdFume00R— Sir Geoff Hurst (@TheGeoffHurst) May 11, 2016
Hurst was recently honoured with a lifetime achievement award at West Ham's end of season awards.
The Hammers will move into their 60,000 seater Olympic Stadium this summer.