Do you take kids outside to play when it's raining? What if they don't have a rain coat?

It's raining here today, and probably will be for the next 2 days, and already this morning the kids are driving me nuts. One of them showed up today in a hoodie, mom says they don't know if they'll get a jacket before the end of the week. I'm not looking forward to being exclusively indoors for the rest of the week.

I'm going to search through my kids stuff to see if they have anything that would work, but I feel like I won't find anything.

If it were you, would you bring them out anyway?