The decision was announced on Tuesday morning, just 24 hours after tickets went on sale for the fight.
The fight was initially scheduled to take place on Wednesday, April 22 at the new Queensland Country Bank Stadium in Townsville.
On Monday, promoters assured fans that the fight was going to go ahead and they could book their tickets to head up to Far North Queensland.
However, the decision was made to make sure fans were not put at any risk.
There is no confirmation as of yet for when the fight will be rescheduled to, but it is believed the priority is to keep the fight in Townsville.
The super welterweight fight was scheduled to be fought over ten rounds, with the winner to claim state bragging rights.
The war of words between the pair had already started, with Horn hammering home the point that he has much more boxing experience than his younger opponent.