It's May and that means that we don't want to spend our weekends stuck inside. We want to know if and when the weather will be good so that we can enjoy our time outside. This week's roundup includes mashups that cover all aspects of weather forecasts. You can also take a look at previous weather mashups that we've highlighted. The big surprise is that Accuweather isn't represented here. If you know of any good apps or mashups using the Accuweather API, please let us know about them.