You won't be happy wearing anything waterproof over your core while you're doing aerobic exercise at 60 F. It would be great if we had waterproof fabrics that worked miraculously (the way some advertisements imply), but we don't.
The outer layer is the
least important one in the group.
If you want to find out the hard way, here's a great cycling jacket for 35 degree (F) rain. It's got a long hemline so it'll cover your lower back while you lean forward; you can also sit on it while wearing the jacket if you hike in a downpour. You'll soak yourself on your own sweat if you ride this at anything but the slowest pace when it's 60 F out:
Here's one that's
NOT waterproof, but is resistant. It's my go-to jacket on the bike. The outside is coated with DWR, so it'll keep me dry a while, but not indefinitely. I adjust my other layers to make it work. I'll start with a merino base layer, and add a cashmere insulation layer if it's below about 50 F. The wool tolerates being wet like nobody's business.
The difference is that this one ^ is actually comfortable at 60 F, with only a base layer underneath. Both are great at 30 F, with appropriate layers below.
I'm speaking from years of personal experience, and summarizing the collective knowledge of the hiking community - who also do aerobic exercise in changing weather.