The weather in Chicago is as unpredictable as Salman Khan’s moods. Luckily Katrina is not shooting with Salman but Aamir for a 20-day schedule of Dhoom 3. However, she has been asked to keep an additional 3-4 days free of other engagements. “Anything can happen to the weather in Chicago. The climate swings are decidedly freaky. The day can start off sunny and then there’s a sudden hailstorm and we are forced to stop shooting,” says a Dhoom 3 actor from Chicago. So Katrina goes with a 4–day grace period which would probably be used to shoot that pending song with Shah Rukh Khan in Switzerland for Yash Chopra’s Jab Tak Hai Jaan. “It would depend entirely on the weather conditions in Chicago. If all goes smoothly for Katrina in Chicago, Shah Rukh will fly down to Switzerland around October 24-25 where he will be joined by Katrina for the song. He then returns home in time for his birthday on 2 November,” says a source. While Aamir Khan has chosen to stay in an apartment with his wife and baby son in Chicago during the long schedule for Dhoom 3, Katrina who now joins Aamir prefers to stay in a hotel, although as per protocol Yashraj offered her accommodation similar to Aamir’s. “But for Katrina it’s very lonely to stay in an apartment all alone. She goes through that experience in Mumbai where she has no one to share her home with. When shooting outside Mumbai, Katrina prefers the detached neutrality of a hotel. It’s far more convenient and practical. She might be joined for a few days by her sister who lives in New York. In any case it is going to be a hectic schedule for Katrina .While shooting for Dhoom 3 she would also have to fly to Switzerland for her romantic song with Shah Rukh Khan in Yash Chopra’s Jab Tak Hai Jaan.”