If it actually gets cold enough to snow where you're at, go to a cross-country ski store and get some xc-ski gloves. They are usually thin, light, and wind and water repellant, and very good for photography. These are not the same as downhill ski gloves, by the way, which are much heavier and thicker. Another good possibility is shooting gloves from an outdoor sports store. This is basically the same story as the xc-ski gloves, except that some shooting gloves have a trigger-finger slit that allows you to actually expose your trigger finger without taking the glove off, thus making it easier to shoot, either a gun or a camera.
In *really* cold weather you need either mitts or big gloves with liner gloves, so you can take off the heavy gloves but leave the lliners on when you shoot, so you don't expose skin...but that's a whole different thing.
JC