Hamilton is chasing a seventh World Drivers’ Championship to draw level with the legendary Michael Schumacher.
The six-time world champ is also hunting down Schumacher’s all-time record of 91 wins in Formula 1.
Victory at Monza would move him to 90, and starting at the front of the grid would be a major boost ahead of Sunday’s race.
Hamilton could only finish fifth in FP3 timesheets, however, with team-mate Valtteri Bottas, McLaren duo Carlos Sainz and Lando Norris, and Renault’s Daniel Ricciardo setting faster laps.
Ricciardo could not finish FP3, however, after a mechanical issue brought his session to a premature end, which left his mechanics needing to get to work ahead of qualifying.