I once shot a 64 in the drizzling rain on a course in Portland, Or. Won the club Championship that day.

Also shot a 97 on the same course in a near downpour.
The Scots have a saying, 'Nay rain, nay wind, tis nay golf'.
A tip I learned about playing in the rain if you must, is to forget about trying to keep clubs and hands dry. I have taken a handerchief, gotten it dripping wet, wrap it around my hand and the club, (no glove necessary) and the grip will hold just fine. Not really legal, but what the hey, it works.
Another key to weather is to remember the old adage, 'there is no such thing as bad weather if you dress properly'.
There are lots of way to play in the rain and it is a new experience. It can also be lots of fun if you give yourself some slack and just go with it.
The funniest putt I ever made was a 10 footer where the green had about 2 inches of standing water and I had to hit it as hard as I could upstream and when the ball went into the hole, a frog popped up out of the hole bringing my ball with it. Rules would properly say it did not count, but I was ROTGLMAO (Rolling on the green laughing my ass off) so hard, I thought it only fair considering the circumstance that it should count anyway.
Regards,
Kent