I am coming back to backpacking after a long time, however am still fairly young and as I return to the scene will transition into light weight gear. It’s amazing to see the weights of some items compared to just a few years ago. Most of my trips will be the weekend variety during the traditional 3-season months out on the west coast. Therefore my question is what do you typically wear skin out during these seasons and what do you have in your pack as it gets cooler to add, plus weather protection.
I know usually a base layer either synthetic or wool but is that all you wear in the summer months or another shirt over that, plus I hear all this about wind shirts and other information. Is that just a long sleeve T-shirt? Before I would just wear a regular synthetic base layer with another cotton shirt then as it got cooler either add a long sleeve t-shirt, or a light sweater type shirt then obviously a jacket if it got cooler or rained.
Anyways, any help or just some lists with some names of what you wear would be great as I get a better understanding.

