Also with most medication you will also receive instructions in the box of pills. This normally includes the dosage you should take, the relevant side effects you may expect to suffer from taking the medication as well what you should and should not take while on the drug.
From research on various sites it seems there is no exact rule against consuming alcohol while taking Levothyroxine, however they should not be taken together or at close proximity. Levothyroxine should ideally be taken in the morning and on an empty stomach so this should not clash with your usual hours of alcohol intake.
But as mentioned earlier it is always best to check with a doctor or medical professional before proceeding with mixing alcohol with prescribed medication. If you cannot reach the doctors in person then it is always an idea to phone up the surgery and be passed onto the doctor who can still talk you through whether it is wise to mix it with alcohol.