All the details of the Spain weather forecast can be found in the map below.
Overview: temperatures and forecast
It shows the current weather conditions in Spain. It includes both the climate and the temperatures (minimum in red and maximum in blue, figures in Celsius). This information is updated approximately every hour.
Portugal is also included in the map as it is next to Spain (on the left hand side)!
The AEMET (Agencia Estatal de Meteorología) is the best and most accurate website to check the weather. You can also have a look at the rain, the temperatures, the clouds, the wind and a satellite image as well.