On June 23, 2008, Weber signed a three-year, $13.5 million contract extension with the Predators, avoiding restricted free agency. During his first year of the new contract, Weber established himself as one of the top defenceman in the NHL. At the mid-way point of the season, he was among the defencemen statistical leaders, was considered a favourite to win the Norris Trophy and was named to the Western Conference roster for the 2009 National Hockey League All-Star Game in Montreal. Weber finished the season with career-highs in all major statistical categories, including games played (81), goals (23), assists (30), points (53) and penalty minutes (80). His 23 goals set a new Predators franchise record for goals by a defenceman in a single season. Although he received no first-place votes, Weber finished fourth in the Norris Trophy voting with 186 voting points, behind winner Zdeno Chára (1,034 points) and runners-up Mike Green (982 points) and Nicklas Lidström (733 points). Weber narrowly missed being named to the NHL Second All-Star Team after receiving four-first place votes and 172 voting points, a single voting point behind Dan Boyle, the final defenceman selected.