October is the month during which the temperature falls from a warm September to a cold November.A jacket with matching skirt will look great.For deciding on footware and taking an outer layer such as a stylish coat first check for the weather and temperature for that day.The BBC weather app can be downloaded to your phone and is very accurate with regular updates and the weather for two weeks or so.Mild is no outer layer and sandals,colder is shoes and a warm coat.If you are going by car you can wear flats then change into heels at the venue.Some clothes shops offer a free personal shopper to help you pick out a suitable outfit.You just tell them you are looking for a wedding outfit and they do all the work for you.M &S is one of those outlet and has a shop in lots of shopping malls.Reasonable prices.Choose an outfit that you can wear again out socially to get good value.Buy your outfit here in England we have big shopping malls.One trip to a mall to buy everything you need.Even your hair can be cut/styled and you can buy makeup,get your nails done.You may wish to avoid white as some brides don't like others to wear the same colour as they do. Trust me I'm English and live right here in England.