Bayern Munich's head coach Jupp Heynckes (C) lifts up the Champions League trophy next to player Bastian Schweinsteiger (L, with German Cup) and assistant Herman Gerland (with Bundesliga Shield) on the balcony of the town hall of Munich, southern Germany, Sunday. Munich won the German Soccer Cup, the Champions League and the German Bundesliga. — AP BERLIN — Mother nature is clearly not a Bayern Munich supporter as heavy rain and chilly temperatures in the Bavarian capital Sunday greeted around 10,000 hardy fans celebrating their historic treble win. Despite heavy rain across south Germany and temperatures more typical of January than June, Bayern fans packed into Munich's iconic Marienplatz to celebrate with the European champions. Bayern's 3-2 victory over VfB Stuttgart in Saturday's German Cup final completed the set after they won the Champions League title and the German league. It means Bayern is the first German team to win the treble of European, league and cup titles as the Bundesliga celebrates its 50th anniversary. Bayern became just the seventh overall to achieve the feat, after Celtic in 1967, Ajax in 1972, PSV Eindhoven in 1988, Manchester United in 1999, Guardiola's Barcelona in 2009, and Inter Milan in 2010. After a long night of partying in Berlin following the cup final win at the capital's Olympic Stadium, Bayern touched down at Munich airport at 1425 local time. The bleary-eyed team boarded a special bus — ironically the same one Borussia Dortmund used to celebrate winning last season's cup and league double — to head to the city center. Thousands of fans decked out in rain jackets, rubber boots and umbrellas ignored the grim weather to catch a glimpse of their heroes raising the three trophies from the city hall's balcony. Germany star Bastian Schweinsteiger hoisted the German Cup, captain Philipp Lahm lifted the Bundesliga Shield while coach Jupp Heynckes had the honor of showing off the Champions League trophy. It was something he had vowed to do during the first of this three stints in charge of the Bavarian giants more than 20 years ago. And Heynckes told the assembled crowd he was grateful for the chance to deliver on that promise. “In 1990, I stood here and a little cockily I promised the European Cup,” said the 68-year-old Heynckes. “Today, I want to make good on my promise. Here's the European Cup of the national champions, the Champions League! We don't just have a world-class team, we have world-class fans, we couldn't have done it without you.” Heynckes will hold a press conference Tuesday to reveal his future plans while ex-Barcelona coach Pep Guardiola will take charge of the European champions on June 26. “When you break nearly every record in the league, and in the manner we played football, then of course it's something quite extraordinary. The Champions League is the crowning achievement and now there's the German Cup,” said Heynckes, who had previously only won the trophy once, as a player with hometown club Borussia Moenchengladbach in 1973. — Agencies