Might have been said above, but COTTON KILLS avoid cotton clothes like the plague. Cotton easily gets wet from sweet than stinks and stays cold. My BDU pants and shirt, which are a Cotton/poly mix are the only remotely cotton gear I have. I wear these as an outer layer to walk to my stand and resist thorns, burs, etc.
Just went Muzzle-loading last week in NE Iowa and temps were pretty close to what you mention plus some light rain. I wore the following and was very comfy:
base layer:
- synthetic underwear and T-shirt, moisture wicking
- thick wool socks, must be 90% or better wool
- silk bottoms with a light merino wool pair over them
- Merino wool long sleeve top
Mid- layer:
- BDU-style camo 6-pocket pants and shirt. These are rip-stop material for walking thru the woods as I mentioned. Cabelas has nice ones in your favorite hunting patterns, Mossy Oak, Realtree, etc. old school Military camo works just as well.
- camo boonie or ball hat, gloves
Outer-layer: I carry these to my stand rolled up in a pack or leave them off in a waterproof container at my stand ahead of time:
- Columbia Wool Hooded Parka. LOVE THIS. Even resists light rain. Warm, quiet and comfy as heaven. ON SALE at Cabelas
Columbia wool
- Fleece stocking cap carried in cargo pocket
- camo face mask (synthetic) or ghille mask
- blaze orange vest as required by hunting regs.
-Danners Pronghorn Boots, uninsulated.
Like a woodland Ninja!