Does the dash have to be in to install windshield

I’ll shoot for a dry day to bring it home and if it by chance gets a bit wet, like JD Mopar said, it will dry. It won’t be my first window to install, and my time is cheap. It was my limited welding and painting skills that caused me to take it to someone else. I can wrench. I will have some nice sheet metal to carpet, wire, install seats; and then try out any number of engines. If I live that long LOL. I’ve got a lot of plans for going on 72 years old next month.