Chances are that wherever you are going, WeatherEye has it covered with over 5,000 city destinations included in its database. Results are collated from the Weather Network and all conditions are displayed in real time. The WeatherEye widget provides short and long term weather forecasts, severe weather warnings and alerts and updated hourly forecasts.
WeatherEye shows forecasts of up to 5 days by default and 10 days by clicking the Long Term Forecast link. This will take you to an online report. If you want to keep an eye on more than one city at a time, you can do that too under options. WeatherEye doesn't have many configuration settings, but it does allow you to specify what cities you want to see, what measurements you use and whether or not to use a proxy server.
If you want a slick and easy-to-use weather widget that covers a huge number of destinations, WeatherEye is a good choice.