Europe Tours in Mid October


I think I’ve finally narrowed down which tour I want to take but may be forced into looking at a mid-october departure to save some money…what type of weather can I expect during this time…The last thing I want is rain and grey miserable days every single day of the trip…what has your experience been like travelling in the late fall (hoping to do the European Getaway)? Should I just save and do the trip in the spring instead? Or do a shorter tour in late August (European Wonder)?