More than 50,000 spectators watched the first of the world famous night glows at the Bristol International Balloon Fiesta on Thursday night.
Despite the large visitor numbers, the planned mass ascent was cancelled earlier because of strong winds.
A handful of balloons were inflated and tethered for the public, but it was considered too dangerous for flight.
The Met Office said conditions would be better for the 150 balloons to lift off on Friday morning.
Earlier, BBC weather forecaster Richard Angwin said: "Although weather conditions are far from ideal this year, there's a reasonable chance of at least a couple of mass ascents."
The Clifton Suspension Bridge will be closed to vehicles and pedestrians from 1800 BST on Saturday until 0200 BST the next day.
A group of balloons was launched from College Green on Monday as a curtain-raiser for the main event.
Several roads in the area will also be closed at certain times. Two special bus services will run from the city centre to the site.
People attending are being encouraged to get the bus, walk or cycle.
The event, which is in its 32nd year, is celebrating 50 years of modern ballooning. It is also celebrating 100 years of aviation at Filton and the 70th anniversary of the Battle of Britain.
Teams from Dubai, the United States, France and Switzerland are among those expected to take part.
Travel details are on the Bristol City Council and Bristol International Balloon Fiesta websites.
The festival ends on Sunday.