It's no secret that Refinery29 readers and editors love any excuse to stock up on summer dresses, whether it's for a happy hour, picnic, or fancier event. And when it comes to summer, one fancy event reigns supreme: The wedding. If your fridge is filled with save the dates, you might be thinking about what you're going to wear. There's a lot to consider, like comfort, weather, and, of course, dress code. Don't leave it to the last minute to peruse for summer-ready wedding guest dresses…