The Open Weather Research and Forecasting (OpenWRF or O-WRF) regional weather model for the Mediterranean, the UK coast, and the Canary Islands provided by the University of Athens and a group of enthusiasts based on the WRF technology is much better now. You can find it in both Windy.app and WindHub apps.
What are the improvements?
OpenWRF weather model, Barcelona weather in the Windy.app for iOS
OpenWRF weather model in WindHub for iOS
It's great for a "to the hour" plan of the day and the level of detail allows to take wind shadows and other local effects into account.
For forecasts up to 5 days be sure to check out the O-SKIRON weather model, and for long-term — ECMWF or ICON13 models.
Learn more about all weather forecast models used in the Windy.app.
Text: Windy.app team