I am having my wedding this weekend in Northwest Missouri. It's been in the mid 80's the last couple weeks so I wasn't concerned about the weather until today. I checked the weather for Saturday, October 3rd and it's going to be in the mid 50's with a 50% chance of rain as of right now. How cold is too cold to have an outdoor wedding? I do have an indoor venue as a back up, but I'd like to keep it outdoors if at all possible. Thanks in advance!