My sister gave me 8 hours heads up she is staying at my house for a week

I love her and don't mind her staying at my house, but can I get more than an 8 hour heads up? I'm not going to be home until until about 7pm tomorrow so I have no idea what she's going to do. I had the lockbox removed after the contractor finished the work weeks ago so she can't get into the house. Weather is also absolute garbage so I have no what she is planning but hopefully it's getting a hotel and not breaking one of my windows.