How good you’ll look depends on the weather and artist’s skills
Professionals are trained to make people look their best regardless weather conditions. You cannot always predict what the weather will be like during the wedding ceremony. High temperatures can make your foundation melt and the rain can ruin your eyeliner and mascara. Leave it to professionals and let them do their job. They know what sort of makeup should be used in such cases.
Avoid unnecessary stress
Your wedding day should be stress-free. You will have too many things to think about and consider anyways. Make your day a bit easier and ask a professional to do makeup for you. Your time and emotional stability are more important.