Supplements Sitting in the Heat?

Hey all, just a quick question. I am doing a PCS (military move). My stuff, all supplements included, was supposed to go from Missouri to El Paso, TX within only 3-5 days. An internal issue with them backed up the process, therefore pushing the move time to 2 weeks. It won’t get here until this coming weekend. From what I understand, it gets extremely hot in the back of semi trailers. Are my supplements going to be bad/trash by the time it gets here or is there a chance it’ll be safe?