Thanks for the heads-up, jastrace! A friend of mine is an ultralight backpacker. He suggested carrying latex gloves and wool liners instead of heavy mittens/gloves. Then you can wear the wool gloves to keep warm, and layer on the latex gloves if it's raining or terribly windy. They're cheap and only weigh about 15 grams per pair. That's what I'm leaning towards, although I have to test them out in a rainstorm.
So here's what I'm planning on wearing/carrying, with the idea that I'll be wearing one set and carrying one set, so that I always have something dry to wear. Of course, I can always pile on all of it if it's absolutely freezing.
2x merino wool t-shirts (95 grams each)
2x merino wool long-sleeved shirts (150 grams each)
2x lightweight hiking trousers (250 grams each)
2x merino wool underwear (28 grams each)
merino wool sports bra (100 grams)
3x wool socks and polyester liners (100ish grams each set)
merino wool long johns (170 grams)
lightweight fleece hoodie (270 grams)
ultralight windshirt (150 grams)
fleece hat (30 grams)
buff (30 grams)
wool gloves, latex gloves (70 grams combined)
raincoat/pack cover (either an
altus or a packa - so either 350ish or 430ish grams)
rainpants (168 grams)
down jacket (204 grams)
So that's a little under 3 kg for clothes (both wearing and carrying). I'm pretty comfortable with my packing list. I realize that it's more than a lot of people might bring, but I really want to make sure that I stay warm and dry. It's just the down jacket that I keep waffling back and forth on...I probably won't make up my mind until the very last minute on that one!