Until it gets down into the low 30s, I'm fine with normal fingerless gloves. (But then, rainy and cold is a reasonable description of Seattle half the year, so I'm used to it. At 45 and raining, I'm still commuting in SPD sandals.)

Below that, I have waterproof/breathable shell gloves that have elastic-corded cuffs. They ride in my saddle bag all year, along with a rain jacket. They're good over my regular cycling gloves if I'm caught in cold rain unexpectedly. If I'm expecting rain or sleet, I use them with fleece liner gloves. The fleece stays warm even when it's wet, dries quickly between rides, and handles the washing machine just fine. That means I don't have to wash the glove shells, which is what ruins waterproofing on so many WPB items.