Running in the rain

I’ll be at the group run tomorrow morning (excited to meet some of you!) for the first half of my 20 mile training run in preparation for the NYC marathon. I just moved here from LA and it’ll be my first time doing a long run in the rain. Any tips (how to dress or just some emotional support)? I’m debating pushing the run to Sunday but I know it’s important to train regardless of weather 🫠