Okay, I need advice (which may not be needed, but I like to be prepared). We're having a family get-together with my in-laws on Sunday. The main activity is going to a candlelit stroll in a historic village. Basically the whole village is all lit up and you just walk around the village and go into the houses and check things out, etc. The majority of your time is spent walking around outside.

According to the weather, it might rain on this day! I don't have a lot of waterproof clothing for myself, let alone Xander (9.5 months), and the thought of us both being outside in the cold and rain for ~2 hours is making me nervous. If it's raining and cold, I REALLY don't want to go for Xander's sake (I think we'd all be cold and miserable), but FIL and SMIL have already bought tickets for us to attend this event.

What would you do? What do you think I should do??