I found a helpful service from Weather.com that allows you to register your wedding location and date in order to receive weather details on it. It will give you average weather for your wedding, until you get within a closer deadline, at which point it gives you a weather forecast for the 10 days before your wedding. You are also able to enter wedding events (ie. bachlorette, engagement party, wedding shower, etc.) and receive the details on those as well. Head to Weather.com and chose the "Wedding Planner" under the "Plan Ahead" tab to start your personalized wedding weather forecaster.