No price range. Temps 30s and 40s. I’m here in CA. As far as precip normal rain shower. Nothing crazy
I like a shell over a base layer, it breathes a little better that way. The problem that I run into every time is you need a significant precip rate to stay cool enough so you aren't sweating your ass off in "waterproof" clothing, but at those precip rates, the waterproof clothing usually doesn't stay waterproof for long. The nice thing about some shells is they have full side-zips, so they are easy to put on and take off, they also tend to be packable-size, so you can put them in a small frame bag, revelate feed bag, pack, etc., don't have to wear them the whole time. I just got back from continuous moderate rain over a 1:45 ride, 35 degrees.
Unless it's warm summer rain, it's damn hard to deal with continuous cold winter rain, just because the stuff that claims to be waterproof is not waterproof in significant precip rates and the stuff that claims to be breathable is not breathable unless you are standing still and not exerting yourself. I probably should have worn my vinyl jacket on this ride I just did, but I wore one packable waterproof jacket, then halfway through, when it was all soaked, I pulled the second one out and put it on over the first (base layer under the first one). In this rain it wasn't going to stay waterproof, but I was going to stay warm by trapping heat.
Some thicker leggings without waterproof layers can work over a wider temp range when it's not raining, like high 40s down to 20s and lower, but once you add that waterproof outer layer, breathability goes to crap.