Trying to pack for a winter trip to Scotland can be tricky thanks to its unpredictable weather. With temperatures ranging from freezing to balmy, it's hard to know if you'll be warm and dry enough. You may luck out with temps in the upper/mid 40's, but it can definitely drop below freezing and get cold enough to snow. There's also about a 50-50 chance of rain each day, so be prepared! To help you be…